标准编号：ISO 21675:2019
中文名称：水质 水中全氟烷基和多氟烷基物质的测定 固相萃取-液相色谱-串联质谱法（LC-MS/MS）
英文名称：Water quality — Determination of perfluoroalkyl and polyfluoroalkyl substances (PFAS) in water — Method using solid phase extraction and liquid chromatography-tandem mass spectrometry (LC-MS/MS)
发布日期：2019-10
标准范围
This document specifies a method for the determination of selected perfluoroalkyl and polyfluoroalkyl
substances (PFAS) in non-filtrated waters, for example drinking water, natural water (fresh water and
sea water) and waste water containing less than 2 g/l solid particulate material (SPM) using liquid
chromatography-tandem mass spectrometry (LC-MS/MS). The compounds monitored by this method
are typically the linear isomers. The group of compounds determined by this method are representative
of a wide variety of PFAS. The analytes specified in Table 1 can be determined by this method. The list
can be modified depending on the purpose for which the method is intended. The lower application
range of this method can vary depending on the sensitivity of the equipment used and the matrix of the
sample. For most compounds to which this document applies ≥0,2 ng/l as limit of quantification can be
achieved. Actual levels can depend on the blank levels realized by individual laboratory.
The applicability of the method to further substances, not listed in Table 1, or to further types of water
is not excluded, but is intended to be validated separately for each individual case.
NOTE 1 PFAS is used in this document to describe the analytes monitored. Many of the compounds in Table 1
are perfluoroalkyl and are also considered polyfluoroalkyl substances.
NOTE 2 The linear PFAS isomers are specified in this document. The branched isomers can be present in
environmental samples, especially for PFOS. Annex E provides an example of an analytical approach to the
chromatographic and spectroscopic separation of individual isomers.
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