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Dapsone a new diazotizing reagent for the spectrophotometric determination of nitrite in waste and natural water samples

Nagaraja, P and Kumar, MSH and Mallikarjuna, NN (2002) Dapsone a new diazotizing reagent for the spectrophotometric determination of nitrite in waste and natural water samples. In: Annali di Chimica, 92 (1-2). pp. 127-134.

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Official URL: http://cat.inist.fr/?aModele=afficheN&cpsidt=13579...

Abstract

A new diazotizing reagent for the spectrophotometric determination of nitrite is described. The method is based on diazotization-coupling reaction between dapsone and phloroglucinol in hydrochloric acid medium. The reactions were conducted at room temperature, the molor absorptivity at 425 nm is 4.28 x 10(4) 1 Mol, (1)cm(-1) and was stable for 50 h. Beer's law was obeyed in the nitrite range of 0.008 - 1.0 mug ml(-1). Tolerance limits were tested for 33 species. The method has been found to be applicable for the determination of nitrite in natural and wastewater.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to John Wiley and Sons.
Keywords: Water pollution;Chemical pollution;Environmental control; Concentration effect;Interelement effect;Acidic solution; Dapsone;Phloroglucinol;Diazotization;Chemical coupling; Sample preparation;Ultraviolet visible spectrometry; Environmental materials;Nitrites;Inorganic anion; Quantitative analysis;Chemical analysis;Trace analysis;
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 21 Jul 2011 07:31
Last Modified: 21 Jul 2011 07:31
URI: http://eprints.iisc.ernet.in/id/eprint/39130

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