SS-EN-ISO-20596-2 › Water quality - Determination of cyclic volatile methylsiloxanes in water - Part 2: Method using liquid-liquid extraction with gas chromatography-mass spectrometry (GC-MS) (ISO 20596-2:2021)
SS-EN-ISO-20596-2
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2022 EDITION
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CURRENT
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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.
To find similar documents by classification:
13.060.50 (Examination of water for chemical substances)
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Designation Name
SS-EN ISO 20596-2:2022
Revision Level
2022 EDITION
Status
Current
Publication Date
Sept. 28, 2022
Language(s)
English
Page Count
28
International Equivalent
EN ISO 20596-2:2022(IDT); ISO 20596-2:2021(IDT)