ISO 20596-2:2021

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

Standard Details

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 StandardDetails. The extract is then analysed by gas chromatography-mass spectrometry (GC-MS).

NOTE Using the ¹³C-labeled, chemically identical substances as internal StandardDetails 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.

General Information

Status : Published

Standard Type: Main

Document No: ISO 20596-2:2021

Document Year: 2021

Pages: 16

Edition: 1

Section Volume:
ISO/TC 147/SC 2. Physical, chemical and biochemical methods

ICS:
13.060.50 Examination of water for chemical substances

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ISO 20596-2:2021

ISO 20596-2:2021

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