21/30430056 DC - BS ISO 23637. Cereals. Determination of cadmium content by graphite furnace atomic absorption spectrometry with diluted nitric acid extraction

21/30430056 DC

BS ISO 23637. Cereals. Determination of cadmium content by graphite furnace atomic absorption spectrometry with diluted nitric acid extraction

Status : Current, Draft for public comment   Published : June 2021

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This document specifies a method for determination of Cd in cereals. Rice, brown rice, wheat and maize by graphite furnace atomic absorption spectrometry (GFAAS) after extraction with diluted nitric acid (HNO3). This method has been validated in 19 interlaboratory studies. The study was for the analysis of samples of brown rice flour, wheat flour and maize flour ranging from 0,039 to 0,414 mg/kg. The limit of quantification is 0,002 mg/kg. The method detection limit is dependent on the sample matrix as well as on the instrument.

For further information on the validation, see Clause 8 and Annex A.




Standard Number21/30430056 DC
TitleBS ISO 23637. Cereals. Determination of cadmium content by graphite furnace atomic absorption spectrometry with diluted nitric acid extraction
StatusCurrent, Draft for public comment
Publication Date08 June 2021
Normative References(Required to achieve compliance to this standard)ISO 3696
Informative References(Provided for Information)ISO 5725-6:1994/Cor 1:2001, ISO 24333:2009, ISO 5725:1986, ISO 5725-1:1994/COR 1:1998, ISO 5725-2:1994
International RelationshipsISO/DIS 23637:2021
Draft Expiry Date24 July 2021
DescriptorsExtraction, Nitric acid, Spectrometry, Absorption, Furnaces, Graphite, Cadmium, Cereals
ICS67.060
Title in FrenchTitre manque
CommitteeAW/4
PublisherBSI
FormatA4
DeliveryYes
Pages16
File Size468 KB
NotesWarning: this draft is not current beyond its expiry date for comments.
Price£20.00


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