ISO 6636:1986
ISO 6636:1986 Fruits, vegetables and derived products – Determination of zinc content – Part 1: Polarographic method
CDN $76.00
Description
The method consists in ashing of a test portion in a muffle furnace at 525+25 C, treating the ash obtained with hydrochloric acid, neutralizing with ammonia solution and determing of the value using an ammonia/ammonium chloride electrolyte. Copper, tin, lead and cadmium do not interfere.
Edition
1
Published Date
1986-04-24
Status
PUBLISHED
Pages
3
Language
English
Format
Secure PDF
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Abstract
The method consists in ashing of a test portion in a muffle furnace at 525+25 C, treating the ash obtained with hydrochloric acid, neutralizing with ammonia solution and determing of the value using an ammonia/ammonium chloride electrolyte. Copper, tin, lead and cadmium do not interfere.
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