Multilaboratory study of automated determinations of polychlorinated biphenyls and chlorinated pesticides in water, soil, and sediment by gas chromatography/mass spectrometry.
Multilaboratory study of automated determinations of polychlorinated biphenyls and chlorinated pesticides in water, soil, and sediment by gas chromatography/mass spectrometry.
复制标题
通过气相色谱/质谱法自动测定水、土壤和沉积物中的多氯联苯和氯化农药的多实验室研究。
DOI：
10.1021/es00168a011
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发表时间：
1988
影响因子：
11.4
通讯作者：
W. Budde
中科院分区：
文献类型：
--
作者：
A. Alford;J. Eichelberger;W. Budde
多氯联苯（PCBs）和氯化农药测定两个水，三个土壤，两个沉积物样品由六个实验室，使用统一的校准溶液和分析程序。目标分析物的识别和测量与特殊的软件上运行的小型计算机控制质谱仪的操作。多氯联苯是通过氯化程度而不是多氯联苯制剂来确定的。除一个土壤样品外，所有样品都加了农药。水样中添加了多氯联苯（Aroclorb的混合物），但已知固体样品受到多氯联苯的环境污染。对固体样品的提取和分析物富集程序（净化）的四种组合所获得的结果进行了比较，但对于所有五种样品，没有一种组合可以选择为最佳。确定了影响数据质量的几个因素。
Polychlorinated biphenyls (PCBs) and chlorinated pesticides were determined in two water, three soil, and two sediment samples by six laboratories that used uniform calibration solutions and analytical procedures. Target analytes were identified and measured with special software operating on minicomputers that controlled mass spectrometer operation. PCBs were determined by level of chlorination, not as Aroclor formulations. All samples, except one soil sample, were fortified with pesticides. Water Bamples were fortified with PCBs (mixtures of Aroclorb), but solid samples were known to be environmentally contaminated with PCBs. Results obtained with four combinations of extraction and analyte enrichment procedures (cleanup) for solid samples were compared, but no combination could be selected as best for all five samples. Several factors affecting data quality were identified.