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Spectrophotometric determination of trace nitrite based on catalytic oxidation of thionine by potassium bromate

โœ Scribed by Mian Jiang; Fang Jiang; Jin Duan; Xueyuan Tang; Zaofan Zhao


Book ID
108304583
Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
396 KB
Volume
234
Category
Article
ISSN
0003-2670

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Spectrophotometric Determination of Trac
โœ Abbas Afkhami; Fahimeh Jalali ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 69 KB

A simple, sensitive, and selective method for rapid determination of nitrite is described which is based on its catalytic effect in the reaction between thymol blue and bromate in acidic media. The reaction is monitored spectrophotometrically by measuring the decrease in absorbance at 543 nm by a fi