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Determination of nitrite and nitrate in some horticultural and meat products and in samples of soil
Author(s) -
Adriaanse A.,
Robbers J. E.
Publication year - 1969
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740200601
Subject(s) - nitrite , nitrate , chemistry , cadmium , naphthylamine , dietary nitrate , environmental chemistry , food science , organic chemistry
Abstract This study of quantitative determination of nitrite and nitrate contents is based on spectrophotometric measurement of the red colour formed when sulphanilic acid is diazotised by the nitrite to be determined and coupled to 1‐naphthylamine‐7‐sulphonic acid (Cleve's acid 1‐7). Nitrate is first reduced to nitrite in a cadmium reducing column. Good results have been obtained with some horticultural and meat products and samples of soil.