ISO 23637:2021
Cereals — Determination of cadmium content by graphite furnace atomic absorption spectrometry with diluted nitric acid extraction

Standard No.

ISO 23637:2021

Release Date

2021

Published By

International Organization for Standardization (ISO)

Latest

ISO 23637:2021

Scope

This document specifies a method for the determination of cadmium (Cd) in cereals. It is applicable to rice, brown rice, wheat and maize by graphite furnace atomic absorption spectrometry (GFAAS) after extraction with diluted nitric acid (HNO3). The limit of quantification is 0,002 mg/kg; it is approximate and dependent on the sample matrix as well as on the instrument conditions.

ISO 23637:2021 Referenced Document

• ISO 3696 Water for analytical laboratory use; Specification and test methods

ISO 23637:2021 history

• 2021 ISO 23637:2021 Cereals — Determination of cadmium content by graphite furnace atomic absorption spectrometry with diluted nitric acid extraction