Fruit and vegetable products — Determination of zinc content — Part 3: Dithizone spectrometric method
NORM herausgegeben am 1.12.1983
Bezeichnung normen: ISO 6636-3:1983
Ausgabedatum normen: 1.12.1983
Zahl der Seiten: 3
Gewicht ca.: 9 g (0.02 Pfund)
Land: Internationale technische Norm
Kategorie: Technische Normen ISO
Description / Abstract: 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.