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)

Datum objavljivanja: 28. 1. 2021.

Опште информације

Trenutna faza: 90.60 Effective date: 5. 6. 2026.

Inicijator: ISO

Pripada: ISO/TC 147/SC 2

Vrsta: Međunarodni standard

ICS: 13.060.50

Jezik: engleski francuski

Kupovina

Status: Objavljen

PDF

Papir

PDF i papir

Jezik

Jezik na kome želite da primite dokument.

Apstrakt

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.

Životni ciklus

TRENUTNO

OBJAVLJEN
ISO 20596-2:2021
90.60 Završetak postupka preispitivanja standarda
5. 6. 2026.

Nacionalna preuzimanja

SRPS EN ISO 20596-2:2022

ISS

Kvalitet vode – Određivanje cikličnih isparljivih metilsiloksanata u vodi – Deo 2: Metoda za tečno-tečnu ekstrakciju na gasnoj hromatografiji sa masenom spektrometrijom (GC-MS)

60.60 Standard objavljen

H147 Saznaj više