Abstract 

A yellow complex is formed by reaction of the vanadium present in a test portion with phosphoric acid and sodium tungstate in acid medium. The spectrometric measurement of the absorbance is carried out at a wavelength of about 425 nm. The method is applicable to products having a vanadium content equal to or greater than 3 mg/kg.


General information

  • Status :  Withdrawn
    Publication date : 1983-06
  • Edition : 1
    Number of pages : 2
  • :
    ISO/TC 47
    Chemistry
  • 67.220.20
    Food additives
    71.060.30
    Acids

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