ISO 5517:1978
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The latest, up-to-date edition.
Fruits, vegetables and derived products Determination of iron content 1,10- Phenanthroline photometric method
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English, French
05-01-1978
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.
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