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工業(yè)甲醇中痕量三甲胺的測定
工業(yè)甲醇中痕量三甲胺的測定 詳細(xì)信息：

名稱：毛細(xì)管柱

固定液：堿性去活聚乙二醇

規(guī)格：30m*0.25mm*0.25um

型號：HH-CAM30

滕州市浩瀚色譜儀器技術(shù)服務(wù)有限公司，研發(fā)了一種工業(yè)甲醇中三甲胺的測量方法。該方法包括：以無水甲醇為溶劑，鹽酸三甲胺為標(biāo)準(zhǔn)物，配置不同濃度的標(biāo)準(zhǔn)溶液；采用氣相色譜法在氣相色譜條件下測量不同濃度的標(biāo)準(zhǔn)溶液的峰面積；繪制工作曲線，得到單位峰面積對應(yīng)的濃度，計(jì)為K值；測量工業(yè)甲醇的峰面積，乘以K值，得到工業(yè)甲醇中三甲胺的含量；其中，氣相色譜條件如下：使用專用毛細(xì)管毛細(xì)色譜柱，載氣流速4～5ml/L，尾吹氣流速8～10ml/L，燃?xì)饬魉?.5～2.5ml/L，助燃?xì)饬魉?20～150ml/L，進(jìn)樣口溫度140～150℃，柱溫120～130℃，檢測器溫度240～260℃，加熱電流1.0～2.0pA。該方法測量結(jié)果較為準(zhǔn)確。

工業(yè)甲醇中痕量三甲胺的測定 測試譜圖：




Determination of Trace Trimethylamine in Industrial Methanol
Determination of trace trimethylamine in industrial methanol

Name: Capillary Column

Fixing solution: Alkaline deactivated polyethylene glycol

Specification: 30m*0.25mm*0.25um

Model: HH-CAM30


Tengzhou Haohan Chromatography Instrument Technology Service Co., Ltd. has developed a method for measuring trimethylamine in industrial methanol. The method includes: using anhydrous methanol as a solvent and trimethylamine hydrochloride as a standard substance, configuring standard solutions of different concentrations; using gas chromatography to measure the peak areas of standard solutions of different concentrations under the first gas chromatography conditions; drawing a working curve, Obtain the concentration corresponding to the unit peak area and calculate it as the K value; measure the peak area of industrial methanol and multiply it by the K value to obtain the content of trimethylamine in industrial methanol. Among them, the first gas chromatography conditions are as follows: use a dedicated capillary capillary column, Carrier gas flow rate is 4～5ml/L, makeup gas flow rate is 8～10ml/L, fuel gas flow rate is 1.5～2.5ml/L, supporting gas flow rate is 120～150ml/L, inlet temperature is 140～150℃, column temperature is 120～ 130℃, detector temperature 240～260℃, heating current 1.0～2.0pA. The measurement result of this method is more accurate.

Determination of trace trimethylamine in industrial methanol Test spectrum:


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