dc.contributor | Universidade Estadual Paulista (Unesp) | |
dc.contributor | Loughborough Univ Technol | |
dc.date.accessioned | 2014-05-20T15:27:27Z | |
dc.date.accessioned | 2022-10-05T16:43:03Z | |
dc.date.available | 2014-05-20T15:27:27Z | |
dc.date.available | 2022-10-05T16:43:03Z | |
dc.date.created | 2014-05-20T15:27:27Z | |
dc.date.issued | 1999-04-05 | |
dc.identifier | Analytica Chimica Acta. Amsterdam: Elsevier B.V., v. 385, n. 1-3, p. 385-392, 1999. | |
dc.identifier | 0003-2670 | |
dc.identifier | http://hdl.handle.net/11449/37428 | |
dc.identifier | 10.1016/S0003-2670(98)00735-1 | |
dc.identifier | WOS:000079535500042 | |
dc.identifier | 1308042794786872 | |
dc.identifier | 1308042794786872 | |
dc.identifier | 0000-0002-2296-1393 | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/3908953 | |
dc.description.abstract | Remazol brilliant orange 3R shows only a voltammetric peak for the reduction of the azo group. No peak was observed for the reduction of the sulfatoethylsulfone or vinylsulfone reactive groups. The reduction of a pre-protonated ate group involving a two-electron process, gives a hydrate derivative in acidic solution. In alkaline solution the reduction process occurs at more negative potential with the formation of an unstable hydrate compound which decomposes via HN-NH bond cleavage and loss of a sulfate group. Optimum conditions are given for the cathodic stripping voltammetric determination of dir: dye in aqueous solution. The optimum accumulation potential and time were 0 V and up to 60 s, respectively. Linear calibration graphs were obtained from 30 to 300 ng ml(-1) in pH 4 and 6.2 to 62 ng ml(-1) in pH 10. The limit of determination obtained was 1.5 ng ml(-1) (pH 10). The coefficient of variation was 2.6% (n = 7) at 62 ng ml(-1) of the reactive dye. (C) 1999 Elsevier B.V. B.V. All rights reserved. | |
dc.language | eng | |
dc.publisher | Elsevier B.V. | |
dc.relation | Analytica Chimica Acta | |
dc.relation | 5.123 | |
dc.relation | 1,512 | |
dc.rights | Acesso restrito | |
dc.source | Web of Science | |
dc.subject | reactive dye | |
dc.subject | remazol brilliant orange 3R | |
dc.subject | electrochemical behavior | |
dc.subject | bidimensional NMR | |
dc.subject | cathodic stripping voltammetry | |
dc.title | Determination of the vinylsulphone azo dye, remazol brilliant orange 3R, by cathodic stripping voltammetry | |
dc.type | Artigo | |