A reagent-injection flow injection procedure for the determination of nitrate and nitrite in water by reduction to NO followed by a membrane separation process and chemiluminescence detection, with air-stripping, is proposed. Microporous PTFE was used as a membrane to transfer NO to the gas phase af
Simultaneous automated determination of chloride, nitrite, nitrate, and ammonia in water and wastewater
β Scribed by Edmondo Canelli
- Book ID
- 104648143
- Publisher
- Springer Netherlands
- Year
- 1976
- Tongue
- English
- Weight
- 515 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0049-6979
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A direct spectrophotometric method for the simultaneous determination of nitrate and nitrite by column preconcentration has been developed. Nitrate is reduced to nitrite in a copper-coated cadmium column which is then treated with azo dye reagent by column preconcentration, and the absorbance due to
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