环境固体基质 - 气相色谱法测定多氯联苯（PCB） - 质量选择检测（GC-MS）或电子捕获检测（GC-ECD

[中文适用范围]： 本文件规定了使用 GC-MS 和 GC-ECD 对土壤、污泥、沉积物、处理过的生物废物和废物中七种选定的多氯联苯（PCB28、PCB52、PCB101、PCB118、PCB138、PCB153 和 PCB180）进行定量测定的方法（见表 2）。表 2 — 本文件的目标分析物 目标分析物 CAS-RN a PCB28 2,4,4'-三氯联苯 7012–37–5 PCB52 2,2',5,5'-四氯联苯 35693–99–3 PCB101 2,2',4,5,5'-五氯联苯 37680–73–2 PCB118 2,3',4,4',5-五氯联苯 31508–00–6 PCB138 2,2',3,4,4',5'-六氯联苯 35065–28–2 PCB153 2,2',4,4',5,5'-六氯联苯 35065–27–1 PCB180 2,2',3,4,4',5,5'-七氯联苯 35065–29–3 a CAS-RN 化学文摘服务登记号。检测限取决于决定因素、所用设备、用于提取样品和净化提取物的化学品质量。在本文件规定的条件下，可实现土壤、污泥和生物废弃物的 1 μg/kg（以干物质表示）至固体废弃物的 10 μg/kg（以干物质表示）的下限。对于某些特定样品，无法达到 10 μg/kg 的限值。污泥、废弃物和处理过的生物废弃物的性质可能不同，PCB 的预期污染水平和干扰物质的存在也可能不同。这些差异使得无法描述一个通用程序。本文件包含基于样品性质以及要使用的提取和净化程序的决策表。注：绝缘液、石油产品、废油和水样中 PCB 的分析分别参考 EN 61619、EN 12766-1 和 ISO 6468。只要通过适当的内部验证实验证明适用性，该方法也可以用于分析未在范围内指定的其他 PCB 同类物。 [外文原描述]： This document specifies methods for quantitative determination of seven selected polychlorinated biphenyls (PCB28, PCB52, PCB101, PCB118, PCB138, PCB153 and PCB180) in soil, sludge, sediment, treated biowaste, and waste using GC-MS and GC-ECD (see Table 2). The limit of detection depends on the determinants, the equipment used, the quality of chemicals used for the extraction of the sample and the clean-up of the extract. Under the conditions specified in this document, lower limit of application from 1 μg/kg (expressed as dry matter) for soils, sludge and biowaste to 10 μg/kg (expressed as dry matter) for solid waste can be achieved. For some specific samples the limit of 10 μg/kg cannot be reached. Sludge, waste and treated biowaste may differ in properties, as well as in the expected contamination levels of PCB and presence of interfering substances. These differences make it impossible to describe one general procedure. This document contains decision tables based on the properties of the sample and the extraction and clean-up procedure to be used. NOTE The analysis of PCB in insulating liquids, petroleum products, used oils and aqueous samples is referred to in EN 61619, EN 12766-1 and ISO 6468 respectively. The method can be applied to the analysis of other PCB congeners not specified in the scope, provided suitability is proven by proper in-house validation experiments.