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

Document Number: ISO 6636-3:1983
File Size: 865 kB
Language: English
Provider: ANSI
Shipping: Available for download - Link will be provided in My ComplianceOnline section

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Product Details

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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