Multi-residue analysis of polycyclic aromatic hydrocarbons, polychlorobiphenyls, and organochlorine pesticides in marine sediments
Multi-residue analysis of polycyclic aromatic hydrocarbons, polychlorobiphenyls, and organochlorine pesticides in marine sediments
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DOI：
10.1007/s00216-001-1170-1
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发表时间：
2002-01-01
影响因子：
4.3
通讯作者：
Garrigues, P
中科院分区：
文献类型：
--
作者：
Thompson, S;Budzinski, H;Garrigues, P
开发了一种采用微波辅助萃取和预纯化的多残留分析程序，用于对海洋沉积物中的多环芳烃 (PAH)、多氯联苯 (PCB) 和有机氯农药 (OCP) 进行联合分析。该程序已通过经过认证的海洋沉积物进行了验证。已采用多种替代标准品，并讨论了使用八氯萘 (OCN) 作为测定该基质中有机氯的替代标准品。所有化合物的回收率都很高 (>70%)，并且相对标准偏差与认证值处于同一数量级。讨论了不同的分析问题，包括气相色谱中的 DDT 降解和实验室 PCB 背景水平。两种农药（顺式氯丹和反式九氯）遇到的定量问题归因于 GC-ECD 色谱图中 PAH 的干扰。
A multi-residue analysis procedure using microwave-assisted extraction and pre-purification has been developed for the combined analysis of polycyclic aromatic hydrocarbons (PAH), polychlorobiphenyls (PCB), and organochlorine pesticides (OCP) in marine sediments. This procedure has been validated with certified marine sediment. Several surrogate standards have been employed and the use of octachloronaphthalene (OCN) as a surrogate standard for organochlorine determination in this matrix is discussed. The recoveries of all compounds were high (>70%) and the relative standard deviations are of the same order as the certified values. Different analytical problems are discussed, including DDT degradation in gas chromatography and laboratory PCB background levels. Quantification problems encountered for two pesticides (cis-chlordane and trans-nonachlor) were attributed to PAH interference in the GC-ECD chromatogram.