Fruits, vegetables and derived products — Determination of iron content — 1,10- Phenanthroline photometric method
NORM herausgegeben am 1.5.1978
Bezeichnung normen: ISO 5517:1978
Ausgabedatum normen: 1.5.1978
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 the organic matter, followed by reduction of trivalent iron by hydroxyammonium chloride, forming, in a buffered medium, of the stable iron(II)/1,10 phenanthroline complex, and photometric measuring of the red-coloured complex at a wavelength of 508 nm.