空氣中氯乙醇的測定,國內(nèi)有人用品紅亞硫酸比色法和變色酸比色法作了初步探討,但操作不夠簡便,且易受多種因素影響。
浩瀚色譜（山東）應(yīng)用技術(shù)開發(fā)有限公司采用國產(chǎn)GC790型氣相色譜儀及氫焰離子化檢測器,對空氣中氯乙醇測定方法進(jìn)行了研究。 一、測定方法 1、原理 空氣中氯乙醇經(jīng)活性炭吸附,以異丙醇、正十四碳烷的二硫化碳溶液解吸,經(jīng)FFAP—ChromosorbW—AW色譜柱分離,用氫焰離子化檢測器檢測,以保留時間定性,根據(jù)氯乙醇與內(nèi)標(biāo)物正十四碳烷峰高比,以標(biāo)準(zhǔn)曲線上查出濃度比定量。
名稱：填充柱
固定液：10%聚乙二醇硝基苯改性
擔(dān)體：Chromosorb W AW
粒度：60-80目
材質(zhì)：不銹鋼
規(guī)格：2m*4mm
型號：10%FFAP/Chromosorb W AW
應(yīng)用：GB 11524-1989 車間空氣中氯乙醇衛(wèi)生標(biāo)準(zhǔn)
The determination of chloroethanol in the air has been preliminarily discussed in China by using red sulfite colorimetry and chromotropic acid colorimetry for human use, but the operation is not simple enough and is easily affected by various factors.
Haohan Chromatography (Shandong) Applied Technology Development Co., Ltd. has studied the determination method of chloroethanol in air using a domestic GC790 gas chromatograph and a hydrogen flame ionization detector. 1、 Determination method 1. Principle: Chloroethanol in the air is adsorbed by activated carbon, desorbed by carbon disulfide solution of isopropanol and n-tetradecane, separated by FFAP Chromosorb W-AW chromatographic column, detected by hydrogen flame ionization detector, and determined by retention time. Based on the peak height ratio of chloroethanol to the internal standard n-tetradecane, the concentration ratio is found on the standard curve for quantification.
Name: Filled Column
Fixed liquid: 10% polyethylene glycol nitrobenzene modified
Support: Chromosorb W AW
Particle size: 60-80 mesh
Material: stainless steel
Specification: 2m * 4mm
Model: 10% FFAP/Chromosorb W AW
Application: GB 11524-1989 Hygienic standard for chloroethanol in the air of workplace
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