空气中氯乙醇的测定,国内有人用品红亚硫酸比色法和变色酸比色法作了初步探讨,但操作不够简便,且易受多种因素影响。
浩瀚色谱（山东）应用技术开发有限公司采用国产GC790型气相色谱仪及氢焰离子化检测器,对空气中氯乙醇测定方法进行了研究。 一、测定方法 1、原理 空气中氯乙醇经活性炭吸附,以异丙醇、正十四碳烷的二硫化碳溶液解吸,经FFAP—ChromosorbW—AW色谱柱分离,用氢焰离子化检测器检测,以保留时间定性,根据氯乙醇与内标物正十四碳烷峰高比,以标准曲线上查出浓度比定量。
名称：填充柱
固定液：10%聚乙二醇硝基苯改性
担体：Chromosorb W AW
粒度：60-80目
材质：不锈钢
规格：2m*4mm
型号：10%FFAP/Chromosorb W AW
应用：GB 11524-1989 车间空气中氯乙醇卫生标准
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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