ISO 20596-1:2018 水质量 水中循环挥发性甲基硅氧烷的测定 第1部分：用气相色谱-质谱法（GC-MS）进行吹扫和捕集的方法

标准编号：ISO 20596-1:2018

中文名称：水质量 水中循环挥发性甲基硅氧烷的测定 第1部分：用气相色谱-质谱法（GC-MS）进行吹扫和捕集的方法

英文名称：Water quality — Determination of cyclic volatile methylsiloxanes in water — Part 1: Method using purge and trap with gas chromatography-mass spectrometry (GC-MS)

发布日期：2018-06

标准范围

This document specifies a method for the quantitative determination of selected cyclic volatile methylsiloxanes (cVMS) in non-filtered water samples by purge and trap extraction with isotope dilution gas chromatography-mass spectrometry (GC-MS).
This method is applicable to the determination of individual cVMS, including:
— octamethylcyclotetrasiloxane (D4);
— decamethylcyclopentasiloxane (D5);
— dodecamethylcyclohexasiloxane (D6);
in surface water, ground water, and wastewater. It can be applied to samples within the concentration range of 0,01 µg/l to 1 µg/l of each of the target compounds. Depending on the matrix, the method may also be applicable to higher concentrations ranging from 1 µg/l to 100 µg/l after suitable dilution of the sample or reduction in sample size.

标准预览图