Hivatkozási szám

MSZ EN ISO 23161:2012

Dokumentumazonosító

153753

Cím

Talajminőség. Egyes szerves ónvegyületek meghatározása. Gázkromatográfiás módszer (ISO 23161:2009)

Angol cím

Soil quality. Determination of selected organotin compounds. Gas-chromatographic method (ISO 23161:2009)

Alkalmazási terület

This International Standard specifies a gas-chromatographic method for the identification and quantification of organotin compounds (OTCs) in soils as specified in Table 1. The method is also applicable to samples from sediments, sludges and wastes (soil-like materials). The working range depends on the detection technique used and the amount of sample taken for analysis. The limit of quantification for each compound is about 10 µg/kg. NOTE When applying this method to the determination of other organotin compounds not specified in the scope, its suitability is proven by proper in-house validation experiments, e.g. methyltin compounds. See Table 2. Methyltin cations are unlikely to evaporate from aqueous solvents, but peralkylated methyltin compounds are volatile and subject to losses (see C.3). Therefore, additional precautions are established. Organotin cations can only be determined in accordance with this International Standard after derivatization. The anionic part bound to the organotin cation is mainly dependent on the chemical environment and is not determined using this method. The peralkylated organotin compounds behave in a completely different way from their parent compounds. Tetraalkylated organotin compounds which are already peralkylated, such as tetrabutyltin, are determined directly without derivatization. The properties, such as particle size distribution, water content and organic matter content of the solids to be analysed using this International Standard vary widely. Sample pretreatment is designed adequately with respect to both the properties of the organotin compounds and the matrix to be analysed.

ICS

13.080.10 Talaj kémiai jellemzői

Műszaki Bizottság

A szabvány nyelve

angol

Az érvényesség kezdete

2012-06-01

A visszavonás napja

2019-04-01

Forrás

idt EN ISO 23161:2011; idt ISO 23161:2009

Előd

Utód

MSZ EN ISO 23161:2019

Módosítás

SZK-közlemények

Kapcsolódó európai jogszabály

A szabvány

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