ION FLOTATION-SPECTROPHOTOMETRIC DETERMINATION OF TRACE AMOUNTS OF NITRITE ION IN WATERS
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概要
- 論文の詳細を見る
A method is described for the spectrophotometric determination of microgram quantities of nitrite ion in water after concentration by using ion flotation. It is based on the formation of red colored azo dye through the reaction of nitrite ion with p-aminobenzenesulfonamide and N-1-naphthylethylenediamine, followed by the flotation of azo dye by using an anionic surfactant, sodium lauryl sulfate. Under the optimum conditions established, down to 1 *g of nitrite ion in 1000 ml of sample could be determined. The precision of the ion flo- tation-spectrophotometric procedure, expressed in terms of relative standard deviation, was 1.25 %. The method was successfully applied to the determination of microgram amounts of nitrite ion in natural fresh waters.
- 社団法人日本分析化学会の論文
- 1982-03-05
著者
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Hobo Toshiyuki
Department Of Applied Chemistry Graduate School Of Engineering Tokyo Metropolitan University
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Suzuki Shigetaka
Department Of Analytical Chemistry
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AOYAMA Mamoru
Department of Industrial Chemistry, Faculty of Technology, Tokyo Metropolitan University
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Aoyama Mamoru
Department Of Industrial Chemistry Faculty Of Technology Tokyo Metropolitan University
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