摘要
在碱性条件下，三氯乙醛转化为氯仿，通过测定加碱前后氯仿的差值间接求得三氯乙醛的含量。据此建立了吹扫捕集（PT）气相色谱质谱（GC/MS）测定饮用水中三氯乙醛的方法，方法检出限为0.05μg/L，回收率为94．0％～102．4％，相对标准偏差为3．6％～6．9％，方法简单快速，能满足饮用水分析要求。
Under alkaline condition, chloral turns into chloroform. The concentration of chloral can be determined indirectly by detecting the chloroform. Therefore, a new method is established to determine chloral in drinking water by purge and trap/gas chromatography-mass spectrometry. The detection limit is 0. 05 μg/L, the mean recoveries are from 94. 0% to 102. 4%. The RSD of the method is between 3.6% to 6. 9% , The method is simple and rapid and can be used to analyzedrinking water.
出处
《环境科学导刊》
2010年第6期93-94,共2页
Environmental Science Survey
关键词
吹扫捕集
气相色谱质谱
三氯乙醛
测定
pruge and trap
gas chromatography-mass spectrometry
chloral
