Spectrophotometric Determination of Nitrite and Nitrate in Cured Meat by Sequential Injection Analysis
β Scribed by S.M. Oliveira; T.I.M.S. Lopes; A.O.S.S. Rangel
- Book ID
- 108825539
- Publisher
- Institute of Food Technologists
- Year
- 2006
- Tongue
- English
- Weight
- 693 KB
- Volume
- 69
- Category
- Article
- ISSN
- 0022-1147
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π SIMILAR VOLUMES
A sequential injection system for the analysis of nitrate and nitrite is described. The sample and reagents are aspirated and mixed by flow reversal while being propelled to a reaction coil or to the detector. The determination of nitrite is based on the Griess-llosvay reaction. Nitrate is previousl
This paper describes three new methods: the first may be used for the determination of nitrite; the second is applicable to determination of nitrate; and the third permits sequential determination of both nitrite and nitrate in mixtures with no prior separation. For the determination of nitrite and
A spectrophotometric flow-injection method based on a diazo-coupling reaction is proposed for the simultaneous determination of nitrite and nitrate. Nitrate is reduced to nitrite by using a reductor column which is formed by filling part of the sample loop with copperized cadmium. The flow system pr
## Abstract A rapid method, of improved accuracy, for the determination of nitrate and nitrite in meat products is described. Nitrate is determined by reduction to nitrite with cadmium, and subsequent development of the dye Orange I obtained with Iβnaphthol/sulphanilic acid reagent. Nitrite present