Abstract Preview

Applicable to products having Ca contents equal to or more than 50 mg/kg. The presence of soluble SiO2 up to 5 g/ml in the test solution does not interfere. Hydrolysis by boiling a test portion in hydrochloric acid medium. Addition of sodium ions, until a constant concentration is obtained, to stabilize the promotion and emission of Ca; addition of lanthanum chloride to increase the sensitivity of the method. Aspiration of the solution into a dinitrogen monoxide-acetylene flame. Spectrometric measurement of the absorption of the 422.7-nm line emitted by a hollow-cathode calcium lamp. Has also been approved by the IUPAC.


General information

  • Status :  Published
    Publication date : 1981-11
  • Edition : 1
    Number of pages : 4
  • :
    ISO/TC 47
    Chemistry
  • 67.220.20
    Food additives
    71.060.50
    Salts

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Revisions / Corrigenda

  • Now confirmed
    ISO 5373:1981

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