BS PD ISO/TS 16780:2015规定了多氯萘的测定方法 （PCNs），其中“poly”是指水和废水中的“mono”到“octa”[含量小于2 g/l 使用高分辨率气相色谱-高分辨率质量分析法测定固体颗粒材料（SPM）] 光谱法（HRGC？HRMS）。注1:表1列出了通过该方法分析的同系物。该方法的工作范围为20 pg/l至8 ng/l。该方法针对PCNs进行了优化，但可以 可以修改为包括其他共面化合物，如多氯二恶英和呋喃 （多氯二苯并二恶英/多氯二苯并呋喃）和类二恶英四到七氯化联苯（dlPCBs）。可以使用这种方法 测定其他基质（如生物群、沉积物、空气）中的PCN；然而，额外的清理步骤和 对于有机物含量高的样品，技术是必要的。低分辨率质谱 （LRMS）和质谱（MS？MS）可以使用。 注2 LRMS和MS？MS情况总结见附录A。LRMS和MS？MS的选择性可能比HRMS低，而且可能会因为 如果使用这些技术，则为干扰化合物。该方法的检测限和定量水平取决于干扰水平 以及仪器的局限性。注3:表4中的最低水平（ML）是通常可通过以下方法确定PCN的水平: 没有干扰。这种方法是基于性能的。允许分析员修改方法，例如克服 干扰，前提是满足该方法中的所有性能标准。注4:第9条给出了建立方法验证或等效性的要求。交叉引用:ISO 3696ISO 5667-1ISO 5667-3ISO 8466ISO 11923ISO 17858ISO 18073ISO/TS 13530ISO/IEC 17025购买本文件时提供的所有当前修订版均包含在购买本文件中。

BS PD ISO/TS 16780:2015 specifies a method for the determination of polychlorinated naphthalenes (PCNs), where "poly" means "mono" to "octa", in waters and waste waters [containing less than 2 g/l solid particulate material (SPM)] using high resolution gas chromatography-high resolution mass spectrometry (HRGC?HRMS).NOTE 1 The congeners analysed by this method are listed in Table 1.The working range of the method is 20 pg/l to 8 ng/l. The method is optimized for PCNs, but can be modified to include other coplanar compounds such as polychlorinated dioxins and furans (PCDDs/PCDFs) and dioxin-like tetra- to heptachlorinated biphenyls (dlPCBs). This method can be used to determine PCNs in other matrices (e.g. biota, sediments, air); however, additional clean-up steps and techniques can be necessary for samples with high organic loadings. Low resolution mass spectrometry (LRMS) and mass spectrometry-mass spectrometry (MS?MS) can be used.NOTE 2 LRMS and MS?MS conditions are summarized in Annex A.Both LRMS and MS?MS can be less selective than HRMS and there is a possibility of bias due to interfering compounds if these techniques are used.The detection limits and quantification levels in this method are dependent on the level of interferences as well as instrumental limitations.NOTE 3 The minimum levels (ML) in Table 4 are the levels at which the PCNs can typically be determined with no interferences present.This method is performance based. The analyst is permitted to modify the method, e.g. to overcome interferences, provided that all performance criteria in this method are met.NOTE 4 The requirements for establishing method validation or equivalency are given in Clause 9.Cross References:ISO 3696ISO 5667-1ISO 5667-3ISO 8466ISO 11923ISO 17858ISO 18073ISO/TS 13530ISO/IEC 17025All current amendments available at time of purchase are included with the purchase of this document.