Spectrophotometric Method for the Determination of Nitrite and Nitrate

Language: English

Published by Scholars' Press Nov 2018, 2018

6202319461 / 9786202319461

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This item is printed on demand - Print on Demand Titel. Neuware -The diazotisable amine, p-aminoacetophenone has been diazotized with nitrite in the presence of hydrochloric acid at room temperature, and the diazotized salt thus produced has been allowed to couple with the reagent, 2,3-dihydroxynaphthalene in alkaline medium to produce a reddish orange azo-dye suitable for the determination of nitrite at ppm level. The ¿max of the azo-dye being 475 nm. The very azo-dye is extractable into an organic solvent like ethylacetate without shifting the ¿max. Similarly, nitrate ion forms a strong reddish-yellow nitro product with 2,3 dihydroxynaphthalene in the presence of concentrated sulfuric acid. This nitro product is extractable into ethylacetate, and its absorbance is measured at 380nm ( ¿max ).The Beer¿s law for nitrite and nitrate were obeyed in the range, 0.1 to 5.0 ppm and 0.2 to 25 ppm, respectively. The molar absorptivity of nitrite and nitrate methods are 2.5¿104 and 3.2¿103 L.mol-1cm-1 respectively. The RSD for both the methods are in the range, 0.5 to 2.5%.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 52 pp. Englisch.…

Seller Inventory # 9786202319461

Title
Spectrophotometric Method for the Determination of Nitrite and Nitrate
Author
Pranab Kumar Tarafder
Publisher
Scholars' Press Nov 2018
Publication year
2018
Condition
Neu
Binding
Taschenbuch
Language
English
ISBN 10
6202319461
ISBN 13
9786202319461
Item weight
96 grams
Dimensions
220x150x4 mm

buchversandmimpf2000

Emtmannsberg, BAYE, Germany

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