Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.14/7461
Título: Spectrophotometric determination of Bromate in water using multisyringe flow injection analysis
Autor: Oliveira, Sara M.
Segundo, Marcela A.
Rangel, António O. S. S.
Lima, José L. F. C.
Cerdà, Víctor
Palavras-chave: Bromate
Multisyringe flow injection analysis
Phenothiazines
Spectrophotometry
Water
Data: 2011
Editora: Taylor & Francis
Citação: OLIVEIRA, Sara M....[et al] - Spectrophotometric determination of Bromate in water using multisyringe flow injection analysis. Analytical Letters. ISSN 0003-2719. Vol. 44 (2011), p.84–297
Resumo: A multisyringe flow injection system for the spectrophotometric determination of bromate in water is proposed, based on the oxidation of phenothiazine compounds by bromate in acidic medium. Several phenothiazines were tested, including chlorpromazine, trifluoperazine, and thioridazine. Higher sensitivity and lower LOD were attained for chlorpromazine. Interference from nitrite, hypochlorite, and chlorite was eliminated in-line, without any changes in the manifold. The automatic methodology using chlorpromazine allowed the determination of bromate between 25 and 750 lgL 1, with LOD of 6 lgL 1, good precision (RSD<1.6%, n¼10), and determination frequency of 35 h 1.
Peer review: yes
URI: http://hdl.handle.net/10400.14/7461
Versão do Editor: http://www.tandfonline.com/doi/abs/10.1080/00032719.2010.500771
Aparece nas colecções:CBQF - Artigos em revistas internacionais com Arbitragem / Papers in international journals with Peer-review

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SM Oliveira, Analytical Letters, 44(2011) 284–297.pdf379,84 kBAdobe PDFVer/Abrir


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