摘要
研究了用顶空液相微萃取GC—MS法测定水中的痕量氯苯类有机污染物。通过实验选择正辛醇为萃取剂，考察了萃取剂的体积、萃取温度、萃取时间、搅拌速度、样品顶空体积以及盐效应等对萃取的影响。在最佳萃取和测定条件下，方法的线性范围为0．1—800μg/L，检出限（S／N=3）为0．05—0．1μg/L。用本方法测定了实际样品及回收率，结果满意.
A method for determination of chlorobenzenes in water by headspace single-drop liquidphase microextraction with GC - MS detection was investigated, n-Octanol was selected as extracting agent based on the experimental results. Experimental parameters influencing the performance of extraction, such as volume of extracting agent, extraction temperature, extraction time, stirring rate, sample and headspace volume, and salt effect etc. were optimized. Under the optimized conditions, the linear range was 0. 1 -800 μg/L and the detection limits （S/N = 3 ） was 0. 05 -0. 1 μg/L. Real sample was successfully analyzed using this method.
出处
《分析测试学报》
CAS
CSCD
北大核心
2007年第6期817-819,822,共4页
Journal of Instrumental Analysis
基金
江苏省普通高等学校"青蓝工程"中青年学术带头人培养基金资助项目
关键词
顶空液相微萃取
氯苯
样品前处理
气相色谱-质谱
headspace liquid-phase microextraction
chlorobenzenes
sample pretreatment
GC - MS
