毒剂及相关化合物的气体发生与采集分析

Determination of Chemical Warfare Agents and Their Relevant Compounds in Gaseous State

在自制气体采样管内,同时进行被测化合物的气体发生和采集。采样后用溶剂淋洗、气相色谱分析。实验证明,所设计的气体发生和采集方法可行,采样效率为100%,且装置简单、体积小、操作简便。在此基础上,优化了采样条件和淋洗条件,对大部分化合物的回收率都在90%以上。

In a self-made solid adsorbent tube, the gas of chemical warfare agents was generated and collected. The tube was eluted with solvent, and the eluent was analyzed using gas chromatography （GC）. The study demonstrated that this device and method are suitable for determination of warfare agents in the gaseous state. The sampling efficiency was 100%. The device is simple and easy to operate, and has avoided use of traditional huge gas generator apparatus. The optimum condition of sampling and solvent elution were studied, and the recoveries were over 90% .