ISO 6635:1984 PDF

ISO 6635:1984 PDF

Name:
ISO 6635:1984 PDF

Published Date:
11/01/1984

Status:
Active

Description:

Fruits, vegetables and derived products -- Determination of nitrite and nitrate content -- Molecular absorption spectrometric method

Publisher:
International Organization for Standardization

Document status:
Active

Format:
Electronic (PDF)

Delivery time:
10 minutes

Delivery time (for Russian version):
200 business days

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Choose Document Language:
$16.2
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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.


File Size : 1 file , 800 KB
Note : This product is unavailable in Ukraine, Russia, Belarus
Number of Pages : 4
Published : 11/01/1984

History


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