Highly sensitive N-(1-naphthyl)ethylene diamine method for the spectrophotometric determination of trace amounts of nitrite in various water samples

Nagaraja, P. and Shivaswamy, M. and Kumar, H. (2001) Highly sensitive N-(1-naphthyl)ethylene diamine method for the spectrophotometric determination of trace amounts of nitrite in various water samples. International Journal of Environmental Analytical Chemistry, 80 (1). pp. 39-48. ISSN 0306-7319

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Abstract

A rapid, simple, sensitive and selective spectrophotometric determination of trace nitrite is described. The method is based on a diazotization-coupling reaction between dapsone and N-(1-naphthyl)ethylenediamine dihydrochloride (NEDA) in a hydrochloric acid medium. The molar absorptivity and Sandell's sensitivity were found to be 7.2x10(4) 1 mol(-1) cm(-1) and 0.00063 mug ml(-1), respectively. The calibration graph is linear for 0.002-0.6 mug ml(-1) of nitrite. The interference effects of various cations and anions were also studied and reported. This method has been found to be applicable to the determination of nitrite in various water samples.

Item Type:	Article
Uncontrolled Keywords:	dapsone; N-(1-naphthyl)ethylenediamine dihydrochloride; nitrite; spectrophotometry
Subjects:	C Chemical Science > Chemistry
Divisions:	Department of > Chemistry
Depositing User:	Harisha R uom
Date Deposited:	31 Jan 2020 05:22
Last Modified:	31 Jan 2020 05:22
URI:	http://eprints.uni-mysore.ac.in/id/eprint/10136

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