ISO 6636-3:1983

Current Revision
Fruit and vegetable products -- Determination of zinc content -- Part 3: Dithizone spectrometric method

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ISO 6636-3:1983

Fruit and vegetable products -- Determination of zinc content -- Part 3: Dithizone spectrometric method

PUBLISH DATE 1983
ISO 6636-3:1983

The method consists in decomposing of organic matter, neutralizing of the solution obtained, adding of 1,5-diphenylthiocabazone solution, extracting of the zinc complex thus furmed with chloroform and measuring of the absorbance of the extract at a wavelength of 538 nm.

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