dc.contributor | Universidade Estadual Paulista (Unesp) | |
dc.date.accessioned | 2014-05-20T14:19:26Z | |
dc.date.accessioned | 2022-10-05T15:18:26Z | |
dc.date.available | 2014-05-20T14:19:26Z | |
dc.date.available | 2022-10-05T15:18:26Z | |
dc.date.created | 2014-05-20T14:19:26Z | |
dc.date.issued | 2012-10-15 | |
dc.identifier | Food Chemistry. Oxford: Elsevier B.V., v. 134, n. 4, p. 2546-2551, 2012. | |
dc.identifier | 0308-8146 | |
dc.identifier | http://hdl.handle.net/11449/25866 | |
dc.identifier | 10.1016/j.foodchem.2012.04.068 | |
dc.identifier | WOS:000305859800113 | |
dc.identifier | 5978908591853524 | |
dc.identifier | 3192125098361121 | |
dc.identifier | 0000-0003-0197-7369 | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/3898921 | |
dc.description.abstract | This paper describes a simple, portable and environmentally friendly procedure for the determination of nitrite by combined spot test/diffuse reflectance spectroscopy on filter-paper. The method is based on the diazotization reaction of dapsone (4,4'-diamino-diphenyl sulphone, DAP) and (naphthyl)ethylenediamine hydrochloride (NED) with nitrite in acidic medium, yielding a coloured compound on the surface of a filter paper. Experimental design methodologies were used to optimise the measurement conditions. The reflectometric measurements were carried out at 545 nm and the linear range obtained was 0.29-5.0 mg L-1 of nitrite (R = 0.997), with detection and quantification limits of 0.09 and 0.29 mg L-1, respectively. The proposed method was applied successfully to the analysis of nitrite in meat products and well water samples. (C) 2012 Elsevier Ltd. All rights reserved. | |
dc.language | eng | |
dc.publisher | Elsevier B.V. | |
dc.relation | Food Chemistry | |
dc.relation | 4.946 | |
dc.relation | 1,793 | |
dc.rights | Acesso restrito | |
dc.source | Web of Science | |
dc.subject | Nitrite | |
dc.subject | Diffuse reflectance | |
dc.subject | Filter paper | |
dc.subject | Meat products | |
dc.subject | Well water | |
dc.title | Determination of nitrite in meat products and water using dapsone with combined spot test/diffuse reflectance on filter paper | |
dc.type | Artigo | |