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Gas Chromatographic Determination of Polychlorinated Biphenyls in Drinking Water Samples with Solid Phase Extraction
Author(s): 
Pages: 611-616
Year: Issue:  5
Journal: Rock and Mineral Analysis

Keyword:  气相色谱法多氯联苯固相萃取大体积样品采样器;
Abstract: 研究了饮用水中84种多氯联苯的气相色谱分析方法.讨论了洗脱曲线、水样的pH值、甲醇加入量、合盐量、萃取流速等实验条件,并与经典的液-液萃取方法进行了对比.确定了样品在pH值为3,以5 mL/min的流速经大体积样品采样器- C18固相萃取柱富集,7 mL丙酮和5 mL乙腈洗脱,氮吹蒸发浓缩后正己烷定容至1.0mL,加入内标后使用电子捕获检测器气相色谱仪测定,并在选定的色谱条件下以选择离子监测方式进...
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