1 主题内容与适用范围

本标准规定了用气相色谱法测定居住区大气中三氯甲烷、四氯化碳的浓度的方法。

本标准适用于居住区大气中三氯甲烷、四氯化碳浓度的测定。也适用于公共场所空气中三氯甲烷、四氯化碳的测定。

2 原理

三氯甲烷、四氯化碳在色谱柱中与共存程序控制物质完全分离后，用电子捕获检测器测定，以保留时间定性，以峰高定量。

名称：填充柱

型号：15%DC-550/Chromosorb W AW填充柱

规格：2m*3mm

使用温度：220°C

货号：20230318001

1. Theme and Scope of Application

This standard specifies the method for determining the concentration of trichloromethane and carbon tetrachloride in the atmosphere of residential areas using gas chromatography.

This standard is applicable to the determination of trichloromethane and carbon tetrachloride concentrations in the atmosphere of residential areas. It is also suitable for the determination of chloroform and carbon tetrachloride in the air of public places.

2 Principles

Trichloromethane and carbon tetrachloride are completely separated from the coexisting program control substance in the chromatographic column, and then determined with electron capture detector, which is qualitative with retention time and quantitative with peak height.

Name: Filled Column

Model: 15% DC-550/Chromosorb W AW filled column

Specification: 2m * 3mm

Maximum operating temperature: 220 ° C

Article number: 20230318001