Spectrophotometric Determination of Nitrite using Diphenylamine as Complexing Agent
Corresponding Author(s) : Mahmoud Chamsaz
je_ak91@stu-mail.um.ac.ir
Asian Journal of Chemistry,
Vol. 21 No. 2 (2009): Vol 21 Issue 2
Abstract
A rapid, simple and sensitive method for determination of trace level of nitrite is described. Nitrite reacts with diphenylamine in sulfuric acid media with 1:2 stoichiometery and the blue coloured complex is determined at 588 nm. Beer's law is obeyed in the range of 38-1150 ng mL-1. Detection limit is 38 ng mL-1, analytical sensitivity is 6 ng mL-1 and relative standard deviation is 5 %. The effect of different ions in determination of nitrite was also investigated.
Keywords
Nitrite
Diphenylamine
Spectrophotometry
Chamsaz, M., Hossein Arbab-Zavar, M., & Akhondzadeh, J. (2010). Spectrophotometric Determination of Nitrite using Diphenylamine as Complexing Agent. Asian Journal of Chemistry, 21(2), 903–906. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/18768
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