ISO-6636-3 › Fruit and vegetable products -- Determination of zinc content -- Part 3: Dithizone spectrometric method

ISO-6636-3 - 1ST EDITION - CURRENT


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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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67.080.01 (Fruits, vegetables and derived products in general)

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Document Number

ISO 6636-3:1983

Revision Level

1ST EDITION

Status

Current

Publication Date

Dec. 1, 1983

Committee Number

ISO TC 34/SC 3