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ISO 6635:1984
Fruits, vegetables and derived products — Determination of nitrite and nitrate content — Molecular absorption spectrometric method
Automatically translated name:
Fruits, vegetables and derived products -- Determination of nitrite and nitrate content -- Molecular absorption spectrometric method
STANDARD published on 1.11.1984
The information about the standard:
Designation standards: ISO 6635:1984
Publication date standards: 1.11.1984
SKU: NS-434090
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: International technical standard
Category: Technical standards ISO
The category - similar standards:
Annotation of standard text ISO 6635:1984 :
Description / Abstract: The method consists in extracting a test portion with hot water, precipitating the protein by addition of solutions of potassium hexacyanoferrate(II) and zinc acetate, and filtrating the precipitate. Further, reduction of the nitrate to nitrite by metallic cadmium (only for determining the nitrate). Then addition of sulfanilamide chloride and N-(1-naphtyl)ethylenediamine and measurement of the red complex obtained at a wavelength of 538 nm.
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