Résumé
Describes a method applicable to products in which the alkalisoluble copper and manganese contents excess 0,25 and 0,5 mg/kg, respectively. The principle consists in successively determining the manganese and copper contents of the two coloured complexes obtained during the analysis, followed by photometric measurements at wavelengths of about 435 nm and 450 nm, respectively.
-
État actuel: AnnuléeDate de publication: 1980-11
-
Edition: 1Nombre de pages: 5
-
- ICS :
- 71.060.50 Sels
Cycle de vie
Vous avez une question?
Consulter notre FAQ
Service à la clientèle
+41 22 749 08 88
Horaires d’ouverture:
De lundi à vendredi - 09:00-12:00, 14:00-17:00 (UTC+1)