ISO 6635:1984
ISO 6635:1984 Fruits, vegetables and derived products – Determination of nitrite and nitrate content – Molecular absorption spectrometric method
CDN $76.00
Description
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.
Edition
1
Published Date
1984-11-01
Status
PUBLISHED
Pages
4
Language
English
Format
Secure PDF
Secure – PDF details
- Save your file locally or view it via a web viewer
- Viewing permissions are restricted exclusively to the purchaser
- Device limits - 3
- Printing – Enabled only to print (1) copy
See more about our Environmental Commitment
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.
Previous Editions
Can’t find what you are looking for?
Please contact us at:
Related Documents
-
ISO 34000:2023 Date and time – Vocabulary
CDN $76.00 Add to cart -
ISO 16417:2020 Earth-moving machinery – Hydraulic breakers – Terminology and commercial specifications
CDN $115.00 Add to cart -
ISO 8927:1991 Earth-moving machinery – Machine availability – Vocabulary
CDN $233.00 Add to cart -
ISO 6405:2017 Earth-moving machinery – Symbols for operator controls and other displays – Part 2: Symbols for specific machines, equipment and accessories
CDN $351.00 Add to cart
