Water quality — Determination of cyclic volatile methylsiloxanes in water — Part 2: Method using liquid-liquid extraction with gas chromatography-mass spectrometry (GC-MS)

Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English, French

Published date

28-01-2021

Publisher

International Organization for Standardization

This document specifies a method for the determination of certain cyclic volatile methylsiloxanes (cVMS) in environmental water samples with low density polyethylene (LDPE) as a preservative and subsequent liquid-liquid extraction with hexane containing ¹³C-labeled cVMS as internal standards. The extract is then analysed by gas chromatography-mass spectrometry (GC-MS).

NOTE Using the ¹³C-labeled, chemically identical substances as internal standards with the same properties as the corresponding analytes, minimizes possible substance-specific discrimination in calibrations. Since these substances are least soluble in water, they are introduced via the extraction solvent hexane into the system.

DocumentType	Standard
Pages	16
PublisherName	International Organization for Standardization
Status	Current

Standards	Relationship
PN-EN ISO 20596-2:2023-02	Identical
DS/EN ISO 20596-2:2022	Identical
NF EN ISO 20596-2:2022	Identical
UNI EN ISO 20596-2:2022	Identical
ÖNORM EN ISO 20596-2:2023 03 15	Identical