Fluorimetric nitrite analysis using 2,3-diaminonaphthalene: an improvement of the method

Autor:	B. Mahieuxe, M.L. Viriot, J.C. Andre, M. C. Carre
Rok vydání:	1999
Předmět:	chemistry.chemical_compound Chromatography Bicyclic molecule Chemistry Reagent General Engineering Fluorescence spectrometry Analytical chemistry General Chemistry Nitrite Quantitative analysis (chemistry) Fluorescence
Zdroj:	Analusis. 27:835-838
ISSN:	1286-482X 0365-4877
DOI:	10.1051/analusis:1999101
Popis:	One of the fluorimetric methods for nitrite determination is based on the reaction of nitrite ions with 2,3-diaminonaphthalene (DAN) to form fluorescent 1-[H]--naphthotriazole. The procedure is sensitive, simple and rapid. However, the DAN reagent is carcinogenic and its use in a large excess for the reaction might he a drawback for an extensive application. In particular to know if a stoechiometric quantity of the reagent might be sufficient to run the reaction, the method was re-examined. In fact, using the latter condition, it was still possible to get nitrite determination in the range 0 to 50 μg NO 2 - .L -1 , with a rather smaller analysis time.
Databáze:	OpenAIRE
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