标准摘要
[中文适用范围]： 本国际标准规定了一种定量测定短链多氯化n-烷烃（SCCPs）的方法，具体涉及碳链长度为n-C10到n-C13的化合物，其氯质量分数在50%到67%之间。该方法适用于使用气相色谱-质谱联用仪（GC-ECNI-MS）测定沉积物、悬浮物质、污泥和土壤中的SCCPs总量。根据基质类型和GC-ECNI-MS的检测能力，该方法可应用于样品中SCCPs含量为0.03 µg/g至3 µg/g的情况 [外文原描述]： ISO 18635:2016 specifies a method for the quantitative determination of the sum of short-chain polychlorinated n -alkanes also known as short-chain polychlorinated paraffins (SCCPs) in the carbon bond range, n -C 10 to n -C 13 , inclusive in mixtures with chlorine mass fractions ("contents") between 50 % and 67 %, including approximately 6 000 of approximately 8 000 congeners. This method is applicable to the determination of the sum of SCCPs in sediment and suspended (particulate) matter, sewage sludge, and soil using gas chromatography-mass spectrometry with electron capture negative ionization (GC-ECNI-MS). Depending on matrix and the detection capabilities of the GC-ECNI-MS, the method can be applied to samples containing, e.g. 0,03 µg/g to 3 µg/g sum of SCCPs.
英文名称Water quality — Determination of short-chain polychlorinated alkanes (SCCPs) in sediment, sewage sludge and suspended (particulate) matter — Method using gas chromatography-mass spectrometry (GC-MS) and electron capture negative ionization (ECNI)