ISO 20596-2:2021
Current
The latest, up-to-date edition.
Water quality — Determination of cyclic volatile methylsiloxanes in water — Part 2: Method using liquid-liquid extraction with gas chromatography-mass spectrometry (GC-MS)
Hardcopy , PDF
English, French
28-01-2021
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.
| Committee |
ISO/TC 147/SC 2
|
| 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 |
| ÖNORM EN ISO 20596-2:2023 03 15 | Identical |
| UNE-EN ISO 20596-2:2023 | Identical |
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