Reference number
ISO 21424:2018
© ISO 2025
International Standard
ISO 21424:2018
Milk, milk products, infant formula and adult nutritionals — Determination of minerals and trace elements — Inductively coupled plasma mass spectrometry (ICP-MS) method
Edition 1
2018-11
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Published (Edition 1, 2018)
This publication was last reviewed and confirmed in 2024. Therefore this version remains current.

ISO 21424:2018

Language
Format
CHF 155
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Abstract

This document specifies a method for the quantitative determination of calcium (Ca), copper (Cu), iron (Fe), magnesium (Mg), manganese (Mn), phosphorus (P), potassium (K), sodium (Na), zinc (Zn), chromium (Cr), molybdenum (Mo) and selenium (Se) using inductively coupled plasma and mass spectrometry (ICP-MS).

The method is applicable for the determination of all 12 elements in infant formula and adult nutritional products. The method is also applicable for milk, milk powder, whey powder, butter and cheese excluding the determination of Cr, because all Cr results were below the quantification limit and reproducibility could not be determined in these matrices[1]. The present method is an extension of ISO 20649 | IDF 235 (AOAC 2011.19[2]) which was validated only for Cr, Mo and Se in infant formula and adult nutritional products.

General information

  • Status
     : Published
    Publication date
     : 2018-11
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 1
    Number of pages
     : 31
  • Technical Committee :
    ISO/TC 34/SC 5
    ICS :
    67.100.10 
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