大气环境中二硫化碳分析方法的选择研究

Selective Study on Analytical Methods for Determination of CS_2 in Atmospheric Environment

应用气相色谱Ni^(63)电子捕获检测器,在用6201红色担体为基体、涂10％OV-101固定液的玻璃柱上,以甲苯作吸收液,对空气中CS_2进行定量检测,其最低检出浓度可达0.005mg/m^3;方法精密度好,SO_2和H_2S等不干扰测定。经现场实际测试,能适用于大气环境中微量CS_2的分析。

A method of applying Ni63 electronic capture detector (ECD) of gas chromatography (GO to determination of trace CS2 in atmospheric environment quantitatively has been conducted. The detective limit was 0.005mg/m3, precision of the method was 3.7%, interference of gaseous substances such as SO2, H2S etc. did not exist. Through field determination, the method is proved suitable for analysis of trace CS2 in atmospheric environment.