3,4-二巯基甲苯衍生砷形态的气相色谱质谱分析  

Derivatization by Toluol-3,4-dithiol for Arsenic Speciation and Gas Chromatographic Analysis

作　　者：陈静[1] 周黎明[1] 曲刚莲[1] 

机构地区：[1]防化指挥工程学院重点实验室,北京102205

出　　处：《分析化学》2001年第11期1276-1279,共4页Chinese Journal of Analytical Chemistry

摘　　要：建立了 3,4 二巯基甲苯衍生路易氏剂和苯胂酸 ,辅之以气相色谱 质谱和气相色谱 原子发射光谱分析的方法。从优化衍生化反应的实验条件出发 ,研究了衍生剂用量、温度、酸度等几个因素的影响。并由GC MS和GC AED获得了路易氏剂和苯胂酸线性范围和检测限。将该法应用于加标水样的分析 ,回收率均在 93 .98%～ 110 .2 6 % 。A method for the determination of Lewisite and phenylarsonic acid in water system was developed. The two components were derivatizated by toluol-3, 4-dithiol and analyzed by gas chromatography-mass spectrometry (GC-MS) and gas chromatography-atomic emission detector (GC-AED). Some reaction factors, such as the amounts of derivatizing agent, the temperature and acidity in derivatization, were optimized. The linear range of Lewisite and phenylarsonic acid of GC-MS and GGAED and the detection limits were given. The method has been applied to spiked water and the recoveries were 93.98% similar to 110.26%.

关 键 词：路易氏剂 苯肿酸 衍生化 3 4-二巯甲苯 化学毒剂 砷 形态 气相色谱 质谱 分析 

分 类 号：O657.63[理学—分析化学]