欧美激情高潮,久久久久久久久久久福利,www.三级http://www.chinagzxs.com/生產銷售催化反應評價裝置在線色譜儀、天然氣氣相色譜儀、氣相色譜儀、燃氣熱值分析儀、實驗室設備等氣相色譜開發關鍵因素-待測樣品信息采集http://www.chinagzxs.com/?id=220<p style="line-height: 1.5em;"><strong><span style="font-size: 16px;">山東鑫之恒氣相色譜分析</span></strong><span style="font-size: 16px;">方法開發,從來不是“套模板”的簡單操作,而是一場“以樣品特性為核心,反向推導儀器參數”的推理!氣相色譜分析沒有標準準的“通用”方案,只有適配特定分析對象的條件組合。</span></p><p style="line-height: 1.5em;"><strong><span style="font-size: 16px;">樣品信息采集</span></strong><span style="font-size: 16px;">作為</span><span style="font-size: 16px;">氣相色譜分析方案配置的關鍵性一步,準確掌握樣品準確信息是設定參數的“導航儀”。采購氣相色譜儀時請向山東鑫之恒儀器廠商提供待測樣品的”全“信息!</span></p><h3 style="line-height: 1.5em;"><span style="font-size: 16px;">1. 待測樣品類型</span></h3><p style="line-height: 1.5em;"><span style="font-size: 16px;">樣品的物理形態,直接決定前處理方式與進樣模式,無需復雜推導,按類型對應即可:</span></p><ul start="1" class=" list-paddingleft-2" style="width: 1051.64px;"><li><p style="line-height: 1.5em;"><span style="font-size: 16px;">氣體樣品:通常無需復雜前處理,可直接進樣;</span></p></li><li><p style="line-height: 1.5em;"><span style="font-size: 16px;">液體樣品與固體樣品:需用合適溶劑溶解/稀釋供試品、提取待測組分,或采用頂空、熱解吸等間接進樣方式,避免基質干擾檢測。</span></p></li></ul><h3 style="line-height: 1.5em;"><span style="font-size: 16px;">2. 待測組分與基質的性質</span></h3><p style="line-height: 1.5em;"><span style="font-size: 16px;">組分與基質的化學、物理特性,是色譜柱、柱溫及檢測器選擇的核心依據,需逐一梳理:</span></p><ul start="1" class=" list-paddingleft-2" style="width: 1051.64px;"><li><p style="line-height: 1.5em;"><strong><span style="font-size: 16px;">揮發性</span></strong><span style="font-size: 16px;">:掌握所有組分的<strong>沸點</strong>信息,沸點范圍直接決定<strong>色譜柱類型</strong>,同時劃定<strong>柱溫程序</strong>的大致區間;</span></p></li><li><p style="line-height: 1.5em;"><strong><span style="font-size: 16px;">極性</span></strong><span style="font-size: 16px;">:待測組分的極性相似性,是選擇色譜柱固定相的核心指標,直接影響組分的分離順序(<strong>相似相溶原理</strong>);</span></p></li><li><p style="line-height: 1.5em;"><strong><span style="font-size: 16px;">熱穩定性</span></strong><span style="font-size: 16px;">:明確組分可承受的zg溫度,以此設定進樣口和柱溫的上限,避免組分<strong>熱分解</strong>;</span></p></li><li><p style="line-height: 1.5em;"><strong><span style="font-size: 16px;">化學活性</span></strong><span style="font-size: 16px;">:判斷組分是否易吸附、易分解,是否會與<strong>儀器金屬表面反應</strong>,是否會與特定<strong>化學物質發生反應</strong>,提前做好<strong>鈍化處理</strong>等準備;</span></p></li><li><p style="line-height: 1.5em;"><strong><span style="font-size: 16px;">結構組成</span></strong><span style="font-size: 16px;">:明確待測組分是碳氫結構有機物還是氮氣等無機物,結構中是否含鹵族元素、磷或硫原子,這是<strong>檢測器選擇</strong>的主要依據;</span></p></li><li><p style="line-height: 1.5em;"><strong><span style="font-size: 16px;">基質的化學性質</span></strong><span style="font-size: 16px;">:確認基質是否熱穩定,溶液pH值與化學性質是否會干擾待測組分檢測,進而影響樣品處理方式與進樣方式的選擇。</span></p></li></ul><h3 style="line-height: 1.5em;"><span style="font-size: 16px;">3. 含量水平與檢測靈敏度要求</span></h3><p style="line-height: 1.5em;"><span style="font-size: 16px;">不同的含量范圍,直接決定<strong>檢測器類型</strong>與進樣方式的選擇,按需匹配更高效:</span></p><ul start="1" class=" list-paddingleft-2" style="width: 1051.64px;"><li><p style="line-height: 1.5em;"><span style="font-size: 16px;">常量分析(%級):FID、TCD等通用型檢測器即可滿足需求,進樣方式通常不受限制;</span></p></li><li><p style="line-height: 1.5em;"><span style="font-size: 16px;">微量/痕量分析(ppm/ppb級):需選用ECD、FPD、NPD等選擇性檢測器,或搭配合適的富集技術,也可通過直接進樣滿足靈敏度需求;</span></p></li><li><p style="line-height: 1.5em;"><span style="font-size: 16px;">未知組分篩查:質譜檢測器(MS)是zj選擇,可實現組分的定性與定量同步完成,無需額外單獨定性。</span></p></li></ul><p><br style="font-family: sans-serif; text-wrap: wrap;"/></p><p><br/></p>Wed, 08 Apr 2026 10:48:09 +0800速看|2026年涉及氣相色譜分析的新實施標準http://www.chinagzxs.com/?id=219<p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">2026 年新發布 / 實施的氣相色譜法國家標準主要集中在化工、環保、食品、石油四大領域,山東鑫之恒儀器借助AI整理一份關于氣相色譜分析相關的2026新標準,方便同行和用戶參考:</span></p><p style="font-family: sans-serif; text-wrap: wrap;"><strong><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">一、2026 年 3 月 1 日實施</span></strong></p><p style="font-family: sans-serif; text-wrap: wrap;"><a href="https://openstd.samr.gov.cn/bzgk/gb/newGbInfo?hcno=6B0B6718374F7E75F1C392339E1E3458" target="_self"><strong><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">1. GB/T 8984-2025 氣體分析 氣體中微量一氧化碳、二氧化碳和碳氫化合物含量的測定 火焰離子化氣相色譜法</span></strong></a></p><p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">替代:GB/T 8984-2008</span></p><p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">領域:工業氣體、高純氣體檢測</span></p><p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">核心:FID 檢測器,測定微量 CO、CO?、總烴 / 非甲烷總烴</span></p><p style="font-family: sans-serif; text-wrap: wrap;"><strong><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">2. <a href="https://www.nhc.gov.cn/sps/c100088/202602/c0c4a9266f7e43cda1bf3bec59fc2786.shtml" target="_self">GB 23200.113-2026 食品安全國家標準 植物源性食品中 242 種農藥及其代謝物殘留量的測定 氣相色譜 - 質譜聯用法</a></span></strong></p><p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">替代:GB 23200.113-2018</span></p><p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">領域:食品農殘檢測</span></p><p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">升級:覆蓋242 種農藥(原 208 種),方法靈敏度、定性準確度提升</span></p><p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">&nbsp;</span></p><p style="font-family: sans-serif; text-wrap: wrap;"><strong><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">二、2026 年 5 月 1 日實施</span></strong></p><p style="font-family: sans-serif; text-wrap: wrap;"><strong><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">1. <a href="https://std.samr.gov.cn/gb/search/gbDetailed?id=m6lhH4xEmi8%3D&mode=p" target="_self">GB/T 28726-2025</a> 氣體分析 氦離子化氣相色譜法</span></strong></p><p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">檢測器:PDHID 氦離子化檢測器</span></p><p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">特點:超高靈敏度(ppb 級),適用于高純電子特氣、稀有氣體雜質分析</span></p><p style="font-family: sans-serif; text-wrap: wrap;"><a href="https://openstd.samr.gov.cn/bzgk/gb/newGbInfo?hcno=1EFB1B78DE9167735006A77C35B7770C" target="_self"><strong><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">2. GB/T 46434-2025 甲醇純度及其微量有機雜質的測定 氣相色譜法</span></strong></a></p><p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">新標</span></p><p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">適用:≥99.0% 工業甲醇純度與雜質(醇、酮、酯等)檢測</span></p><p style="font-family: sans-serif; text-wrap: wrap;"><a href="https://openstd.samr.gov.cn/bzgk/gb/newGbInfo?hcno=549369D3D36B77132AA33C4DF236D498" target="_self"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">檢出限:雜質2~12 mg/kg</span></a></p><p style="font-family: sans-serif; text-wrap: wrap;"><a href="https://openstd.samr.gov.cn/bzgk/gb/newGbInfo?hcno=549369D3D36B77132AA33C4DF236D498" target="_self"><strong><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">3. GB/T 18606-2025 沉積物和原油中生物標志化合物氣相色譜 - 質譜測定方法</span></strong></a></p><p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">替代:舊版 GB/T 18606</span></p><p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">領域:石油地質、地球化學</span></p><p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">對象:飽和烴、芳烴類生物標志物(用于油源對比、成熟度分析)</span></p><p style="font-family: sans-serif; text-wrap: wrap;"><strong><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">4. <a href="https://www.mee.gov.cn/ywgz/fgbz/bz/bzwb/jcffbz/202602/W020260205591524735527.pdf" target="_self">HJ 1458-2026 固定污染源廢氣 30 種揮發性有機物的測定 氣袋采樣 / 便攜式 GC-MS 法</a></span></strong></p><p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">用途:現場快速篩查VOCs(苯系物、鹵代烴、酮酯等)</span></p><p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">檢出限:0.05~0.4 mg/m3(吸附管富集)</span></p><p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">&nbsp;</span></p><p style="font-family: sans-serif; text-wrap: wrap;"><strong><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">三、2026 年 7~8 月實施</span></strong></p><p style="font-family: sans-serif; text-wrap: wrap;"><strong><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">1. <a href="https://www.mee.gov.cn/ywgz/fgbz/bz/bzwb/jcffbz/202602/W020260203630787827170.pdf" target="_self">HJ 1444-2026 環境空氣 10 種含硫化合物的測定 罐采樣 - 預濃縮 / 氣相色譜法</a></span></strong></p><p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">實施:2026-08-01</span></p><p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">替代:GB/T 14678-1993</span></p><p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">對象:H?S、甲硫醇、甲硫醚、二甲二硫、羰基硫等10 種惡臭硫化物</span></p><p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">技術:蘇瑪罐采樣 + 低溫預濃縮 + GC-FPD/PFPD</span></p><p style="font-family: sans-serif; text-wrap: wrap;"><a href="https://www.mee.gov.cn/ywgz/fgbz/bz/bzwb/jcffbz/202602/W020260203630193619959.pdf" target="_self"><strong><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">2. HJ 37-2026 固定污染源廢氣 乙腈和丙烯腈的測定 活性炭吸附 / 溶劑解吸 - 氣相色譜法</span></strong></a></p><p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">實施:2026-08-01</span></p><p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">替代:HJ/T 37-1999</span></p><p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">行業:化工、化纖、合成橡膠廢氣</span></p><p style="font-family: sans-serif; text-wrap: wrap;"><a href="https://www.mee.gov.cn/ywgz/fgbz/bz/bzwb/jcffbz/202602/W020260203629969548871.pdf" target="_self"><strong><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">3. HJ 34-2026 固定污染源廢氣 氯乙烯和<span style="color: #FF0000;"><span style="color: #000000;">BXQ</span></span>的測定 氣袋采樣 / 氣相色譜法</span></strong></a></p><p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">實施:2026-08-01</span></p><p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">替代:HJ/T 34-1999、HJ/T 36-1999(二標合一)</span></p><p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">行業:PVC、石化、有機合成廢氣</span></p><p style="font-family: sans-serif; text-wrap: wrap;"><a href="http://c.gb688.cn/bzgk/gb/showGb?type=online&hcno=F33129EF7D84CB0223613710AE6D1ECC" target="_self"><strong><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">4. GB/T 27894.8-2026 天然氣 氣相色譜法測定組成 第 8 部分:微型熱導檢測器(μ-TCD)法</span></strong></a></p><p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">實施:2026-08-01</span></p><p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">對象:H?、O?、N?、CO、CO?、C?~C?+ 烴類</span></p><p style="font-family: sans-serif; text-wrap: wrap;"><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;">特點:<strong>微型 TCD</strong>,適合在線 / 便攜天然氣分析儀</span></p><div><span style="font-family: arial, helvetica, sans-serif; font-size: 16px;"><br/></span></div><p><br/></p>Tue, 07 Apr 2026 15:04:36 +0800安裝氣相色譜柱前應保證氣相色譜儀的狀態穩定http://www.chinagzxs.com/?id=218<p style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin-top: 0px; margin-bottom: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box; clear: both; min-height: 1em; color: rgb(62, 62, 62); font-family: &quot;PingFang SC&quot;, system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; letter-spacing: 0.544px; text-align: justify; text-wrap: wrap; background-color: rgb(255, 255, 255); overflow-wrap: break-word !important;"><span style="font-size: 16px; font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;;"><span style="font-size: 16px; -webkit-tap-highlight-color: ; margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box; color: #1E70B4; overflow-wrap: break-word !important;"><span style="font-size: 16px; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-variant-position: normal; font-stretch: normal; font-weight: 700; line-height: 24px; text-wrap: wrap; flex: 0 1 auto; flex-direction: row; justify-content: normal; align-items: normal; padding: 0px; margin: 0px; background-image: none; background-position: 0% 0%; background-size: auto; background-repeat: repeat; background-attachment: scroll; background-origin: padding-box;">色譜柱是氣相的 “心臟”,但儀器是 “供血和體溫系統”。氣相色譜分析系統不穩,心臟再好也跳不平穩。所以</span></span>安裝色譜柱的第一步是<span style="font-size: 16px; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-variant-position: normal; font-stretch: normal; font-weight: 700; line-height: 24px; flex: 0 1 auto; flex-direction: row; justify-content: normal; align-items: normal; padding: 0px; margin: 0px; background-image: none; background-position: 0% 0%; background-size: auto; background-repeat: repeat; background-attachment: scroll; background-origin: padding-box; background-clip: border-box;">先保證儀器穩定</span>。</span></p><p style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin-top: 0px; margin-bottom: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box; clear: both; min-height: 1em; color: rgb(62, 62, 62); font-family: &quot;PingFang SC&quot;, system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; letter-spacing: 0.544px; text-align: justify; text-wrap: wrap; background-color: rgb(255, 255, 255); overflow-wrap: break-word !important;"><span style="-webkit-tap-highlight-color: ; margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box; color: #1E70B4; font-size: 16px; font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;; overflow-wrap: break-word !important;"><br/></span></p><p style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin-top: 0px; margin-bottom: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box; clear: both; min-height: 1em; color: rgb(62, 62, 62); font-family: &quot;PingFang SC&quot;, system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; letter-spacing: 0.544px; text-align: justify; text-wrap: wrap; background-color: rgb(255, 255, 255); overflow-wrap: break-word !important;"><span style="font-size: 16px; font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;;"><span style="-webkit-tap-highlight-color: ; margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box; color: #1E70B4; font-size: 16px; font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;; overflow-wrap: break-word !important;">?? 進樣口:</span><span leaf="" style="-webkit-tap-highlight-color: ; margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;; box-sizing: border-box !important; overflow-wrap: break-word !important;">更換新的進樣墊(避免舊墊殘留樣品)、襯管(若襯管內有污染物,載氣會將其帶入色譜柱),并確認進樣口密封良好(無漏氣);</span></span></p><p style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin-top: 0px; margin-bottom: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box; clear: both; min-height: 1em; color: rgb(62, 62, 62); font-family: &quot;PingFang SC&quot;, system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; letter-spacing: 0.544px; text-align: justify; text-wrap: wrap; background-color: rgb(255, 255, 255); overflow-wrap: break-word !important;"><span style="-webkit-tap-highlight-color: ; margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;; box-sizing: border-box !important; overflow-wrap: break-word !important;"><br style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"/></span></p><p style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin-top: 0px; margin-bottom: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box; clear: both; min-height: 1em; color: rgb(62, 62, 62); font-family: &quot;PingFang SC&quot;, system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; letter-spacing: 0.544px; text-align: justify; text-wrap: wrap; background-color: rgb(255, 255, 255); overflow-wrap: break-word !important;"><span style="font-size: 16px; font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;;"><span style="-webkit-tap-highlight-color: ; margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box; color: #1E70B4; font-size: 16px; font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;; overflow-wrap: break-word !important;">?? 檢測器:</span><span leaf="" style="-webkit-tap-highlight-color: ; margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;; box-sizing: border-box !important; overflow-wrap: break-word !important;">關鍵操作!老化時需斷開色譜柱與檢測器的連接(如FID、ECD檢測器),用死堵(或廢柱段)密封檢測器入口。</span></span></p><p style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin-top: 0px; margin-bottom: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box; clear: both; min-height: 1em; color: rgb(62, 62, 62); font-family: &quot;PingFang SC&quot;, system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; letter-spacing: 0.544px; text-align: justify; text-wrap: wrap; background-color: rgb(255, 255, 255); overflow-wrap: break-word !important;"><span style="font-size: 16px; font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;;"><span leaf="" style="-webkit-tap-highlight-color: ; margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;; box-sizing: border-box !important; overflow-wrap: break-word !important;"><br style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"/></span><span style="-webkit-tap-highlight-color: ; margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box; color: #1E70B4; font-size: 16px; font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;; overflow-wrap: break-word !important;">&nbsp;&nbsp;&nbsp;&nbsp;原因是:</span><span leaf="" style="-webkit-tap-highlight-color: ; margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;; box-sizing: border-box !important; overflow-wrap: break-word !important;">老化過程中被吹出的雜質若進入檢測器,會污染檢測器(如ECD檢測器對雜質極敏感,一旦污染很難清理);</span></span></p><p style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin-top: 0px; margin-bottom: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box; clear: both; min-height: 1em; color: rgb(62, 62, 62); font-family: &quot;PingFang SC&quot;, system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; letter-spacing: 0.544px; text-align: justify; text-wrap: wrap; background-color: rgb(255, 255, 255); overflow-wrap: break-word !important;"><span style="-webkit-tap-highlight-color: ; margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box; color: #1E70B4; font-size: 16px; font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;; overflow-wrap: break-word !important;"><br style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"/></span></p><p style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin-top: 0px; margin-bottom: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box; clear: both; min-height: 1em; color: rgb(62, 62, 62); font-family: &quot;PingFang SC&quot;, system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; letter-spacing: 0.544px; text-align: justify; text-wrap: wrap; background-color: rgb(255, 255, 255); overflow-wrap: break-word !important;"><span style="font-size: 16px; font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;;"><span style="-webkit-tap-highlight-color: ; margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box; color: #1E70B4; font-size: 16px; font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;; overflow-wrap: break-word !important;">?? 載氣系統</span><span leaf="" style="-webkit-tap-highlight-color: ; margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;; box-sizing: border-box !important; overflow-wrap: break-word !important;">:載氣純度必須達到99.999%以上(高純級),且需安裝除氧、脫水過濾器(若過濾器使用超過3個月,建議提前更換)。</span></span></p><p style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin-top: 0px; margin-bottom: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box; clear: both; min-height: 1em; color: rgb(62, 62, 62); font-family: &quot;PingFang SC&quot;, system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; letter-spacing: 0.544px; text-align: justify; text-wrap: wrap; background-color: rgb(255, 255, 255); overflow-wrap: break-word !important;"><span style="-webkit-tap-highlight-color: ; margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;; box-sizing: border-box !important; overflow-wrap: break-word !important;"><br style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"/></span></p><p style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin-top: 0px; margin-bottom: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box; clear: both; min-height: 1em; color: rgb(62, 62, 62); font-family: &quot;PingFang SC&quot;, system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; letter-spacing: 0.544px; text-align: justify; text-wrap: wrap; background-color: rgb(255, 255, 255); overflow-wrap: break-word !important;"><span style="-webkit-tap-highlight-color: ; margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 16px; font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;; box-sizing: border-box !important; overflow-wrap: break-word !important;">若載氣含氧量>10ppm,高溫下會氧化固定相,導致柱效永久性下降;</span><span style="font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;; font-size: 16px; letter-spacing: 0.544px;">含水量過高則會水解極性固定相(如FFAP柱)。</span></p><p style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin-top: 0px; margin-bottom: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box; clear: both; min-height: 1em; color: rgb(62, 62, 62); font-family: &quot;PingFang SC&quot;, system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; letter-spacing: 0.544px; text-align: justify; text-wrap: wrap; background-color: rgb(255, 255, 255); overflow-wrap: break-word !important;"><span style="font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;; font-size: 16px; letter-spacing: 0.544px;"><br/></span></p><p style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin-top: 0px; margin-bottom: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box; clear: both; min-height: 1em; color: rgb(62, 62, 62); letter-spacing: 0.544px; text-align: justify; text-wrap: wrap; background-color: rgb(255, 255, 255); overflow-wrap: break-word !important;"><font face="微軟雅黑, Microsoft YaHei"><span style="font-size: 16px;">儀器不穩定的情況下,出鋒不好不等于色譜柱不好用。</span></font></p><p><br/></p>Wed, 25 Mar 2026 16:04:27 +0800學習氣相色譜基本術語http://www.chinagzxs.com/?id=217<p><span style="font-size: 16px;"><strong><br/></strong></span></p><p><span style="font-size: 16px;"><strong>氣相<span style="font-family: 宋體; letter-spacing: 1px; text-align: justify; text-indent: 32px; text-wrap: wrap; background-color: rgba(255, 255, 255, 0.7); font-size: 16px;">色譜法是非常重要又常用的分析方法,今天山東鑫之恒儀器講解色譜基本術語。</span></strong></span></p><p><span style="font-size: 16px;"><strong>&gt;色譜圖(流出曲線)</strong></span></p><p><span style="font-size: 16px;">試樣中的各組分經色譜柱分離后,隨載氣依次進入檢測器,檢測器將各組分濃度的變化轉換為電信號,在記錄儀上記錄為檢測器響應隨時間的變化的微分曲線,稱為色譜流出曲線。</span></p><p><span style="font-size: 16px;"><strong>&gt;色譜峰</strong></span></p><p><span style="font-size: 16px;">組分從色譜柱流出,檢測器對該組分的響應信號隨時間變化所形成的峰形曲線。<br/></span></p><p><span style="font-size: 16px;">特點:當進樣少,組分濃度低時,呈高斯分布。</span></p><p><span style="font-size: 16px;"><strong>&gt;基線</strong></span></p><p><span style="font-size: 16px;">在正常操作條件下,僅用載氣通過色譜柱時,檢測器響應信號隨時間變化的曲線稱為基線。</span></p><p><span style="font-size: 16px;">特點:穩定的基線應為平行于橫軸的直線。</span></p><p><span style="font-size: 16px;"><strong>&gt;峰高</strong><br/></span></p><p><span style="font-size: 16px;">色譜峰頂點到基線的垂直距離(高度)稱為色譜峰高。</span></p><p><span style="font-size: 16px;"><strong><span style="text-wrap: wrap; font-size: 16px;">&gt;</span>色譜峰寬度</strong></span></p><p><span style="font-size: 16px;">色譜峰的區域寬度是組分在色譜柱中譜帶擴張的函數,可以反映色譜柱的分離效能。在能夠將組分分開的情況下,峰的區域寬度越窄越好。</span></p><p><span style="font-size: 16px;"><strong>&gt;保留值</strong><br/></span></p><p><span style="font-size: 16px;">試樣各組分在色譜柱中保留行為的量度,它反映了組分與固定相之間相互作用的大小:保留時間tR、保留體積VR。</span></p><p><span style="font-size: 16px;"><strong>&gt;拖尾峰</strong></span></p><p><span style="font-size: 16px;">當組份被玻璃襯管或色譜柱吸附的時候。</span></p><p><span style="font-size: 16px;">當極性成分在非極性固定液的色譜柱內分析的時,也可能出現。</span></p><p><span style="font-size: 16px;"><strong>&gt;尖峰</strong></span></p><p><span style="font-size: 16px;">毛細管柱:在分析時峰形幾乎都是尖峰。</span></p><p><span style="font-size: 16px;">填充柱:在等溫分析時越先出的峰,峰 形越尖銳。</span></p><p><span style="font-size: 16px;"><strong>從譜圖可以判斷出哪些信息?</strong></span></p><section><span style="font-size: 16px;">(1)色譜峰數目——可以判斷試樣中所含組分的z少個數。</span></section><section><span style="font-size: 16px;">(2)色譜峰保留值(或位置)——可以進行定性分析。</span></section><section><span style="font-size: 16px;">(3)色譜峰下的面積或峰高——可以進行定量分析。</span></section><section><span style="font-size: 16px;">(4)色譜峰的保留值及其區域寬度——是評價色譜柱 分離效能的依據。</span></section><section><span style="font-size: 16px;">(5)色譜峰兩峰間的距離——是評價固定相和流動相 選擇是否合適的依據。</span></section><br/><p><br/></p>Thu, 12 Mar 2026 15:14:36 +0800假期結束,氣相色譜儀開機操作不會的看這里!http://www.chinagzxs.com/?id=216<p style="line-height: 2em;"><span style="font-size: 16px;">&nbsp; &nbsp;隨著春節假期的結束,我們再次回到了緊張而充實的工作崗位。對于科研工作者和實驗室技術人員而言,假期后的重要任務便是確保實驗室各類精密儀器的順利重啟與穩定運行。</span></p><p style="line-height: 2em;"><span style="font-size: 16px;">&nbsp; &nbsp;為此,<a href="http://www.xinzhiheng17.com" target="_self"><strong>山東鑫之恒儀器</strong></a>準備了<strong>氣相色譜儀開機</strong>攻略,旨在為實驗室同仁們提供一份實用的操作參考。</span></p><p style="line-height: 2em;"><strong><span style="font-size: 16px;">開機操作如下:</span></strong></p><p style="line-height: 2em;"><span style="font-size: 16px;">&nbsp; &nbsp;檢查氣瓶或氣體發生器等氣源是否有氣或正常工作,檢測一切正常后打開氣源,如長時間未使用建議用肥皂水或檢漏液檢測各個接口處是否漏氣(尤其氫氣檢測),等壓力表穩定或發生器達到設定值后(發生器一般設定壓力在0.4Mpa,氫氣發生器在未輸出流量且達到設定壓力時,數值顯示0.00)在進行下一步操作;<br/></span></p><p style="line-height: 2em;"><span style="font-size: 16px;">&nbsp; &nbsp;檢查電源線和插座是否正常連接,如儀器配有自動進樣器需檢查進樣針與洗針液和廢液瓶是否準備妥當,檢查完成后打開儀器電源;</span></p><p style="line-height: 2em;"><span style="font-size: 16px;">&nbsp; &nbsp;開機后觀察各個部位能否達到設定值,如:柱流速,檢測器氣體流量,各部溫度尤其柱流速未達到要檢查進樣墊是否漏氣,要及時更換,待所有部位就緒后進行下一步;</span></p><p style="line-height: 2em;"><span style="font-size: 16px;">&nbsp; &nbsp;打開電腦軟件工作站,連接成功后選擇需要的方法下發,查看各部位溫度和流量是否達到設定值,待所有均達到設定值后,執行基線監測;</span></p><p style="line-height: 2em;"><span style="font-size: 16px;">&nbsp; &nbsp;待基線平穩后開始進樣工作。</span></p><p><br/></p><p><br style="font-family: sans-serif; text-wrap: wrap;"/></p><p><br/></p>Tue, 10 Feb 2026 15:52:11 +0800非防爆型天然氣在線熱值分析儀http://www.chinagzxs.com/?id=215<p style="text-align: center;"><img class="ue-image" src="http://www.chinagzxs.com/zb_users/upload/2026/02/202602071770452889345936.jpg"/></p><p style="text-indent:32px;line-height:24px;background:rgb(255,255,255)"><strong><span style="font-family: 宋體;font-size: 16px">ONline </span></strong><strong><span style="font-family: 宋體;font-size: 16px">GC天然氣在線</span></strong><strong><span style="font-family: 宋體;font-size: 16px">熱值</span></strong><strong><span style="font-family: 宋體;font-size: 16px">分析儀</span></strong><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">可與天然氣管道直接連接實現在線進樣分析,并可以實現</span>24小時連續在線監測,分析的數據結果可以通過用戶的網絡平臺協議進行上傳到中控系統。為用戶提供了準確、快速,簡潔的檢測手段,使分析監測數據一目了然。</span></p><p style="text-indent:32px;line-height:24px;background:rgb(255,255,255)"><strong><span style="font-family: 宋體;font-size: 16px">ONline </span></strong><strong><span style="font-family: 宋體;font-size: 16px">GC天然氣在線</span></strong><strong><span style="font-family: 宋體;font-size: 16px">熱值</span></strong><strong><span style="font-family: 宋體;font-size: 16px">分析儀</span></strong><span style=";font-family:宋體;font-size:16px">可對天然氣中氮、甲烷、</span><span style=";font-family:宋體;font-size:16px">二氧化碳、</span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">乙烷、丙烷、異丁烷、正丁烷、正戊烷、異戊烷及</span>C6+以上的烴類成份的一次進樣全分析。</span></p><p style="text-indent:32px;line-height:24px;background:rgb(255,255,255)"><span style=";font-family:宋體;font-size:16px"></span><br/></p><p><strong><span style="font-family: 宋體;font-size: 16px">分析儀關鍵元件:可靠自動六通閥、十通閥:</span></strong></p><p><span style="font-family: 宋體;font-size: 16px">? 采用進口VICI6通閥、10通閥設計</span></p><p><span style="font-family: 宋體;font-size: 16px">? 錐形密封墊圈設計,有效保證密封效果,隔絕雜質污染 </span></p><p><span style="font-family: 宋體;font-size: 16px">? 采用動力氣驅動,操作簡單,反應快,可靠性高</span></p><p><span style="font-family: 宋體;font-size: 16px">? 閥的壽命大于5百萬次</span></p><p><strong><span style="font-family: 宋體;font-size: 16px">分析儀關鍵元件:緊湊型色譜柱:</span></strong></p><p><span style="font-family: 宋體;font-size: 16px">? 采用直徑3毫米鈍化處理不銹鋼色譜柱,選用進口單體,使天然氣分析時間更快,</span></p><p><span style="font-family: 宋體;font-size: 16px">&nbsp;&nbsp;<span style="font-family:宋體">載氣流量消耗更小</span></span></p><p><span style="font-family: 宋體;font-size: 16px">? 有效的分離天然氣的各個組分,使分析結果更加確</span></p><p><span style="font-family: 宋體;font-size: 16px">? 壽命長,可靠性高</span></p><p><strong><span style="font-family: 宋體;font-size: 16px">分析儀關鍵元件:高靈敏錸鎢絲</span></strong></p><p><span style=";font-family:宋體;font-size:16px">? 采用熱敏材料設計,有效提高熱導檢測器靈敏度</span></p><p><span style=";font-family:宋體;font-size:16px">? 一體式密封加熱,散熱比小,布局合理,溫度均勻,效率更高,節約能耗。</span></p><p><span style=";font-family:宋體;font-size:16px">? 升溫降溫速率快,穩定性好</span></p><p style="margin-top:0;margin-bottom:0;line-height:24px;background:rgb(255,255,255)"><strong><span style="font-family: 宋體;font-size: 16px">非防爆型天然氣在線熱值分析儀應用領域:</span></strong></p><p style="margin-top:0;margin-bottom:0;text-indent:32px;line-height:24px;background:rgb(255,255,255)"><span style="font-family: 宋體;font-size: 16px">LNG CNG加氣站、油田氣、煤層氣、礦井氣、頁巖氣、燃氣管道運輸公司、燃氣運輸公司、燃氣儲備站、煤改氣企業、LNG點供、燃氣具生產企業、石油煉化、焦化廠、冶煉廠和供氣站等眾多行業。</span></p><p><br/></p>Sat, 07 Feb 2026 16:27:06 +08002026馬年春節將至|氣相色譜儀關機指南速看http://www.chinagzxs.com/?id=214<section style="box-sizing: border-box; margin: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">在過去的日子里,<strong style="box-sizing: border-box; margin: 0px;">氣相色譜儀</strong>如同我們并肩作戰的親密戰友,陪伴我們攻克了一個又一個難關,收獲了滿滿的成果。如今春節將至,到了讓這臺 “戰友&quot; 好好休息的時候。這份<strong>氣相色譜儀關機</strong>指南送給大家,希望大家在<a href="http://www.chinagzxs.com" target="_self"><strong style="box-sizing: border-box; margin: 0px;">GC關機</strong></a>的過程中,一切順順利利。每一步操作都精準無誤。輕松完成關機流程,讓儀器以好的狀態進入假期。</span></section><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><br style="box-sizing: border-box; margin: 0px;"/></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><strong style="box-sizing: border-box; margin: 0px;"><span style="box-sizing: border-box; margin: 0px; font-size: 16px; color: #17365D;">一、關機步驟</span></strong></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><strong><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">1、在氣相色譜儀操作面板或工作站軟件上關閉檢測器相關參數:</span></strong></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">①FID檢測器火焰;</span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">②FPD檢測器火焰和高壓(光電倍增管開關);</span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">③&nbsp;ECD檢測器電流/脈沖開關;</span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">④TCD檢測器橋電流(橋流)、橋溫或者燈絲開關;</span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">⑤NPD檢測器銣珠(銣珠電流、電壓等);</span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">注:</span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">①檢測器火焰關閉作為關機的第一步,主要是為了避免檢測器降溫過程中,火焰燃燒生成的水汽冷凝在檢測器內;</span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">②機械閥類的氣相色譜儀,不能用儀器面板或者工作站軟件關閉火焰,直接將氫氣和空氣調節閥關閉或關閉氫氣和空氣氣體管路開關閥關閉火焰,亦可關閉氣體凈化器開關閥關閉火焰;&nbsp;</span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">③EPC(電子流量控制)類氣相色譜,一般檢測器火焰關閉后會自動關閉氫氣和空氣,否則手動設置關閉;</span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">④關閉檢測器關鍵參數時,如果使用毛細色譜柱,請勿關閉尾吹氣(填充柱分析無尾吹氣選項);&nbsp;</span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><strong><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">2 、將各加熱模塊溫度設為40℃:</span></strong></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">①氣相色譜儀進樣口、檢測器、轉化爐、柱箱等溫度;</span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">②外部設備的溫度,如前處理儀器:熱解吸、頂空進樣器和吹掃捕集等;&nbsp;</span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">注:</span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">能通過氣相色譜儀工作站控制的儀器,可將此類步驟保存為“儀器關機方法&quot;,直接調用下發即可。&nbsp;</span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><strong><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">3&nbsp;關閉氣相色譜電源開關</span></strong></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">等到各加熱模塊溫度降到80℃以下,就可關閉儀器電源,接著關閉GC工作站和電腦即可;</span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><strong><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">4 關閉各氣路總開關和支路開關:</span></strong></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">①&nbsp;載氣;</span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">②&nbsp;FID、FPD和NPD檢測器燃氣(氫氣)、助燃氣(空氣);</span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">③&nbsp;氣動閥的動力氣(空氣等)</span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><strong><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">5 清潔:</span></strong></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">①&nbsp;對于粘度、濃度較大樣品,一定要用溶劑清洗干凈進樣針內的殘留;</span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">&nbsp;②&nbsp;更換進樣墊和襯管,以備年后開機;</span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">③&nbsp;按要求處理廢液及廢棄的樣品等;</span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><strong style="box-sizing: border-box; margin: 0px;"><span style="box-sizing: border-box; margin: 0px; font-size: 16px; color: #17365D;">二、注意事項</span></strong></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">①&nbsp;關機后要關閉各氣路氣源閥門;若實驗室使用鋼瓶,應先關閉鋼瓶瓶閥,待氣路剩余氣體排出之后,壓力表降到零時,再關閉減壓閥;</span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">②&nbsp;關機后根據規定關閉實驗室排風設備、總電源開關等,并拔掉插座等;</span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">③&nbsp;關好門窗,長時間不用的GC蓋上儀器罩。</span></p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(51, 51, 51); font-family: &quot;microsoft yahei&quot;; text-wrap: wrap; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; margin: 0px; font-size: 16px;">如您對氣相色譜儀關機有疑慮,可聯系儀器廠商技術人員進行指導操作,切勿因盲目操控導致儀器不可逆損壞!</span></p><p><br/></p>Sat, 07 Feb 2026 15:51:15 +0800馬年大吉|鑫之恒儀器2026 春節假期安排,請查收http://www.chinagzxs.com/?id=213<p style="text-align: center;"><img class="ue-image" src="http://www.chinagzxs.com/zb_users/upload/2026/02/202602071770448777408864.png" title="2026春節放假安排.png" alt="2026春節放假安排.png" width="1190" height="2105" style="width: 1190px; height: 2105px;"/></p><p><br/></p><p style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin-top: 0px; margin-bottom: 24px; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgba(0, 0, 0, 0.9); font-family: &quot;PingFang SC&quot;, system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; text-wrap: wrap; background-color: rgb(255, 255, 255); box-sizing: border-box !important; overflow-wrap: break-word !important;"><span leaf="" style="-webkit-tap-highlight-color: ; margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;">新的一年,萬象更新,馬年象征著速度、力量與成功。為確保不耽誤您的分析工作,請提前做好備貨安排,以便我們持續為您提供優質服務,助您在新的一年里&quot;馬到成功&quot;!</span></p><p style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin-top: 0px; margin-bottom: 24px; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgba(0, 0, 0, 0.9); font-family: &quot;PingFang SC&quot;, system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; text-wrap: wrap; background-color: rgb(255, 255, 255); box-sizing: border-box !important; overflow-wrap: break-word !important;"><span leaf="" style="-webkit-tap-highlight-color: ; margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;">以上如造成您諸多不便,還望諒解與支持!</span></p><p style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin-top: 0px; margin-bottom: 24px; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgba(0, 0, 0, 0.9); font-family: &quot;PingFang SC&quot;, system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; text-wrap: wrap; background-color: rgb(255, 255, 255); box-sizing: border-box !important; overflow-wrap: break-word !important;"><span leaf="" style="-webkit-tap-highlight-color: ; margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;">在此,山東鑫之恒儀器提前祝您及家人新春快樂,馬年大吉,事業如駿馬奔騰,蒸蒸日上,萬事順遂!</span><span leaf="" style="-webkit-tap-highlight-color: ; margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;">期待節后攜手共啟新程。</span></p><p style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin-top: 0px; margin-bottom: 24px; padding: 0px; outline: 0px; max-width: 100%; min-height: 1em; color: rgba(0, 0, 0, 0.9); font-family: &quot;PingFang SC&quot;, system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; text-wrap: wrap; background-color: rgb(255, 255, 255); box-sizing: border-box !important; overflow-wrap: break-word !important;"><span leaf="" style="-webkit-tap-highlight-color: ; margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;">順祝商祺!</span></p><p style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin-top: 0px; margin-bottom: 24px; padding: 0px; outline: 0px; max-width: 100%; min-height: 1em; color: rgba(0, 0, 0, 0.9); font-family: &quot;PingFang SC&quot;, system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: right; text-wrap: wrap; background-color: rgb(255, 255, 255); box-sizing: border-box !important; overflow-wrap: break-word !important;"><span leaf="" style="-webkit-tap-highlight-color: ; margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;">山東鑫之恒儀器儀表有限公司</span></p><p style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin-top: 0px; margin-bottom: 24px; padding: 0px; outline: 0px; max-width: 100%; min-height: 1em; color: rgba(0, 0, 0, 0.9); font-family: &quot;PingFang SC&quot;, system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: right; text-wrap: wrap; background-color: rgb(255, 255, 255); box-sizing: border-box !important; overflow-wrap: break-word !important;"><span leaf="" style="-webkit-tap-highlight-color: ; margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;">2026.02.09</span></p>Sat, 07 Feb 2026 14:50:22 +0800實驗室超純水和純水的區別有哪些?http://www.chinagzxs.com/?id=212<h3 style="margin: 0px; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-variant-position: normal; font-stretch: normal; font-size: 16px; line-height: 32px; font-family: 宋體; text-align: left; text-wrap: wrap; background-color: rgb(255, 255, 255);"><strong style="margin: 0px; padding: 0px;">在科研實踐中,水作為溶劑、介質、清洗劑和反應參與者滲透進每一個實驗步驟,同樣水的純度影響著實驗分析!</strong><br/></h3><h3 style="margin: 0px; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-variant-position: normal; font-stretch: normal; font-size: 16px; line-height: 32px; font-family: 宋體; text-align: left; text-wrap: wrap; background-color: rgb(255, 255, 255);">制備工藝</h3><ul style="list-style-type: none;" class=" list-paddingleft-2"><li><p id="" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; word-break: break-all; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-variant-position: normal; font-stretch: normal; line-height: 24px; text-indent: 2em; text-align: left;"><span style="font-size: 16px;"><strong style="margin: 0px; padding: 0px;">純水</strong>:</span></p></li><ul style="list-style-type: circle;" class=" list-paddingleft-2"><li><p style="text-align: left;"><span style="font-size: 16px;">指的是不含雜質的H?O,通過設備將水中的離子除去,達到一定的純度。</span></p></li><li><p style="text-align: left;"><span style="font-size: 16px;">主要使用反滲透、蒸餾等方式進行制備。</span></p></li></ul><li><p id="" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; word-break: break-all; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-variant-position: normal; font-stretch: normal; line-height: 24px; text-indent: 2em; text-align: left;"><span style="font-size: 16px;"><strong style="margin: 0px; padding: 0px;">超純水</strong>:</span></p></li><ul style="list-style-type: circle;" class=" list-paddingleft-2"><li><p style="text-align: left;"><span style="font-size: 16px;">在純水的基礎上,進行更深層次的純化,去除水中的導電介質、不離解的膠體物質、氣體及有機物等。</span></p></li><li><p style="text-align: left;"><span style="font-size: 16px;">需要經過預處理、反滲透、EDI(電去離子)、樹脂、殺菌系統等多層工藝才能夠制成。</span></p></li></ul></ul><h3 style="margin: 0px; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-variant-position: normal; font-stretch: normal; font-size: 16px; line-height: 32px; font-family: 宋體; text-align: left; text-wrap: wrap; background-color: rgb(255, 255, 255);">水質指標</h3><ul style="list-style-type: none;" class=" list-paddingleft-2"><li><p id="" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; word-break: break-all; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-variant-position: normal; font-stretch: normal; line-height: 24px; text-indent: 2em; text-align: left;"><span style="font-size: 16px;"><strong style="margin: 0px; padding: 0px;">電導率</strong>:</span></p></li><ul style="list-style-type: circle;" class=" list-paddingleft-2"><li><p style="text-align: left;"><span style="font-size: 16px;">純水的電導率在2~10μs/cm之間。</span></p></li><li><p style="text-align: left;"><span style="font-size: 16px;">超純水的電導率極低,通常為0.056μs/cm或更低,電阻率則能達到18.2MΩ/CM。</span></p></li></ul><li><p id="" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; word-break: break-all; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-variant-position: normal; font-stretch: normal; line-height: 24px; text-indent: 2em; text-align: left;"><span style="font-size: 16px;"><strong style="margin: 0px; padding: 0px;">雜質含量</strong>:</span></p></li><ul style="list-style-type: circle;" class=" list-paddingleft-2"><li><p style="text-align: left;"><span style="font-size: 16px;">純水的雜質含量為ppm級別(百萬分率)。</span></p></li><li><p style="text-align: left;"><span style="font-size: 16px;">超純水的雜質含量極低,接近ppb級別(十億分率),幾乎除了水分子之外沒有雜質。</span></p></li></ul></ul><h3 style="margin: 0px; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-variant-position: normal; font-stretch: normal; font-size: 16px; line-height: 32px; font-family: 宋體; text-align: left; text-wrap: wrap; background-color: rgb(255, 255, 255);">應用領域與實驗條件</h3><ul style="list-style-type: none;" class=" list-paddingleft-2"><li><p id="" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; word-break: break-all; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-variant-position: normal; font-stretch: normal; line-height: 24px; text-indent: 2em; text-align: left;"><span style="font-size: 16px;"><strong style="margin: 0px; padding: 0px;">純水</strong>:</span></p></li><ul style="list-style-type: circle;" class=" list-paddingleft-2"><li><p style="text-align: left;"><span style="font-size: 16px;">適用于一般實驗室的清洗、制備試劑等。</span></p></li><li><p style="text-align: left;"><span style="font-size: 16px;">在對水質純度要求不高的實驗中,純水可以滿足需求。</span></p></li></ul><li><p id="" style="margin-top: 0px; margin-bottom: 0px; padding: 0px; word-break: break-all; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-variant-position: normal; font-stretch: normal; line-height: 24px; text-indent: 2em; text-align: left;"><span style="font-size: 16px;"><strong style="margin: 0px; padding: 0px;">超純水</strong>:</span></p></li><ul style="list-style-type: circle;" class=" list-paddingleft-2"><li><p style="text-align: left;"><span style="font-size: 16px;">適用于要求很高純度的分析實驗,如高精度儀器分析、微量元素分析等。</span></p></li><li><p style="text-align: left;"><span style="font-size: 16px;">在生物、制藥、石油、化工、鋼鐵、玻璃等領域也有廣泛應用。</span></p></li><li><p style="text-align: left;"><span style="font-size: 16px;">在這些領域中,實驗或生產對水質純度有極高要求,超純水能夠滿足這些需求。</span></p></li></ul><p style="text-align: left;"><span style="font-size: 16px;"></span></p><p style="text-align: left;"><span style="font-size: 16px;">山東鑫之恒儀器供應國產實驗室純水機、超純水機,為科研分析助力!</span></p></ul>Tue, 27 Jan 2026 14:44:34 +0800毛細管柱使用一段時間柱效降低怎么回事?http://www.chinagzxs.com/?id=211<p><span style="font-size: 16px;">有用戶反饋使用一段時間的<a href="http://www.chinagzxs.com/?cate=16" target="_self">毛細管柱</a>出現柱效降低情況,峰高低,峰拖尾,跑基線不穩等。技術排查可能是用戶操作不當造成的。拆下柱子會發現管壁上出現黑點。<br/></span></p><p><strong><span style="font-size: 16px;">主要可能的不當操作有:</span></strong></p><p><span style="font-size: 16px;">①色譜柱在超過耐受溫度下頻繁使用,導致固定相被破壞;</span></p><p><span style="font-size: 16px;">②儀器氣源載氣氮氣或氦氣的純度不夠,微量的氧氣或水汽在色譜柱升溫過程中反復作用,導致固定相被破壞;</span></p><p><span style="font-size: 16px;">③色譜柱沒有使用儲存時未密封,導致空氣中氧氣或水汽進入,使用時沒有先低溫吹掃色譜柱,直接升至高溫導致固定相被破壞;</span></p><p><span style="font-size: 16px;">④方法切換時,程序升溫的最高溫度沒有變更,到時色譜柱在超過耐受溫度下使用,導致固定相被破壞。</span></p><p><span style="font-size: 16px;">因此如果我們在使用時沒有注意以上幾點,通常都會導致極性毛細管柱壽命較短。</span></p><p><strong style="font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;; font-size: 16px;">如何維護可以延長</strong><strong style="font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;; font-size: 16px;">極性</strong><strong style="font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;; font-size: 16px;">毛細管柱使用壽命?</strong></p><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;padding:0 0 0 0 "><span style="font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;; font-size: 16px;"><strong>1.正確的老化色譜柱</strong></span></p><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;text-indent:33px;padding:0 0 0 0 "><span style="font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;; font-size: 16px;">老化前,在室溫下用載氣吹掃色譜柱5 ~10 分鐘。</span></p><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;text-indent:33px;padding:0 0 0 0 "><span style="font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;; font-size: 16px;">程序升溫老化色譜柱時一開始升溫速率不宜過快,終點溫度為待測樣品操作條件溫度以上20℃,或色譜柱z高使用溫度以下20℃。達終點溫度后恒溫1~2 小時或更長,至基線穩定即可。如基線始終不穩,或空白程序升溫時始終出現雜峰鬼峰,應檢漏并更換進樣墊和襯管、檢查進樣口及檢測口是否污染,必要時進行適當清洗。</span></p><p><span style="font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;; font-size: 16px;">&nbsp;</span></p><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;padding:0 0 0 0 "><span style="font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;; font-size: 16px;"><strong>2.正確保存色譜柱</strong></span></p><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;text-indent:33px;padding:0 0 0 0 "><span style="font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;; font-size: 16px;">將毛細管色譜柱從GC 上卸下來之后,應將其保存在原來的盒子中。并將色譜柱兩端密封起來。如果要把色譜柱留在已加熱的GC 中,則必須始終要有載氣流通過色譜柱。只有在關閉柱溫箱、進樣器、檢測器和傳輸管線的加熱系統時,才可以關閉(即,取消加熱)載氣。如果沒有載氣流通過,就會對色譜柱加熱的部分產生損壞。</span></p><p><span style="font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;; font-size: 16px;">&nbsp;</span></p><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;padding:0 0 0 0 "><span style="font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;; font-size: 16px;"><strong>3.載氣純化</strong></span></p><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;text-indent:33px;padding:0 0 0 0 "><span style="font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;; font-size: 16px;">載氣流路(例如氣路、接頭、進樣器)中的泄漏往往是暴露在氧中的源頭。隨著色譜柱的加熱,會很快地損壞固定相。這樣會造成色譜柱的過度流失,活性組分形成拖尾,以及/或降低柱效(分離度)。一般發現時色譜柱的固定相通常已經被破壞了,色譜柱柱效會有明顯的降低或者色譜柱無法繼續使用。</span></p><p style="margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;text-indent:33px;padding:0 0 0 0 "><span style="font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;; font-size: 16px;">因此我們日常需要經常對GC系統進行維護,包括定期檢查氣路和壓力表的泄漏、定期更換隔墊、更換載氣中的捕集阱(<a href="http://www.chinagzxs.com/?id=101" target="_self">脫氧管</a>),在氣體鋼瓶完全用完之前就更換鋼瓶。</span></p><p><span style="font-family: 微軟雅黑, &quot;Microsoft YaHei&quot;; font-size: 16px;">&nbsp;</span></p><p><span style="font-size: 16px;"><br/></span><br/></p><p><br/></p><p><br/></p>Tue, 13 Jan 2026 09:57:57 +0800