标准摘要
[中文适用范围]： 本文件规定了经苯化和溶剂萃取后采用气相色谱-质谱法测定过滤水样中烷基汞化合物的方法。 本方法适用于地表水和废水中单一乙基汞(EtHg)化合物的测定。 甲基汞 (MeHg) 和 该方法适用于每种化合物汞质量含量为 0.2 μg/l 至 10 μg/l 的样品。 根据基质的不同，在适当稀释样品或减少样品量后，该方法也可能适用于更高的浓度。 [外文原描述]： This document specifies a method for the determination of alkylmercury compounds in filtered water samples by gas chromatography-mass spectrometry after phenylation and solvent extraction. This method is applicable to determination of individual methylmercury (MeHg) and ethylmercury (EtHg) compounds in surface water and waste water. The method can be applied to samples containing 0,2 μg/l to 10 μg/l of each compound as mercury mass. Depending on the matrix, the method may also be applicable to higher concentrations after suitable dilution of the sample or reduction in sample size.
英文名称Water quality — Determination of alkylmercury compounds in water — Method using gas chromatography-mass spectrometry (GC-MS) after phenylation and solvent extraction