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)
Autor: ISO
Código ICS: 13.060.50
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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.

Especificaciones de la Norma
Fecha de Publicación 28/01/2021
Título Secundario Qualité de l'eau -- Détermination de méthylsiloxanes cycliques volatiles dans l'eau -- Partie 2: Méthode par extraction liquide-liquide avec chromatographie en phase gazeuse-spectrométrie de masse (CG-SM)
Páginas Técnicas 16
Idioma Inglés