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Titolo:
On the use of the optothermal window technique for the determination of low concentrations of chromium (VI) and phosphorus in water
Autore:
Lima, JAP; Marin, E; Cardoso, SL; Da Silva, MG; Sthel, M; Gatts, C; Mariano, A; Rezende, CE; Ovalle, ARC; Suzuki, MS; Vargas, H;
Indirizzi:
Univ Estadual Norte Fluminense, Ctr Ciencia & Tecnol, BR-28015620 Campos Dos Goytacazes, RJ, Brazil Univ Estadual Norte Fluminense Campos Dos Goytacazes RJ Brazil BR-28015620 BC Univ Estadual Norte Fluminense, Ctr Biol & Biotecnol, BR-28015620 Campos Dos Goytacazes, RJ, Brazil Univ Estadual Norte Fluminense Campos Dos Goytacazes RJ Brazil BR-28015620 BC Univ La Habana, Fac Fis, Vedado 10400, Habana, Cuba Univ La Habana VedadoHabana Cuba 10400 c Fis, Vedado 10400, Habana, Cuba
Titolo Testata:
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
fascicolo: 4, volume: 76, anno: 2000,
pagine: 331 - 344
SICI:
0306-7319(2000)76:4<331:OTUOTO>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
SPECTROMETRY; SIGNALS;
Keywords:
optothermal window; water pollutants; chromium (VI) and phosphorus;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
13
Recensione:
Indirizzi per estratti:
Indirizzo: Vargas, H Univ Estadual Norte Fluminense, Ctr Ciencia & Tecnol, Av AlbertoLamego 2000, BR-28015620 Campos Dos Goytacazes, RJ, Brazil Univ Estadual Norte Fluminense Av Alberto Lamego 2000 Campos Dos Goytacazes RJ Brazil BR-28015620 BC
Citazione:
J.A.P. Lima et al., "On the use of the optothermal window technique for the determination of low concentrations of chromium (VI) and phosphorus in water", INT J ENV A, 76(4), 2000, pp. 331-344

Abstract

In this work we report about the use of the Optothermal Window (OW) technique, actually a variant of Photoacoustic Spectroscopy, combined with well-proven colorimetric methods to the determination of low concentrations of pollutants in water. As a first approach, chromium (VI) and phosphorus were determined in distilled water samples. The determination of Cr (VI) and P species in environmental and biological systems is currently of considerable interest due to the toxicity of their compounds to live organisms. Their maximum allowed values in drinking water were well discriminated in our experiments as well as the limits of optical spectrophotometric measurements. The detection limit in our measurements was 0.1 mu mol/L P-PO43- for phosphorus at 632.8 nm and 0.2 mu mol/L for chromium (VI) at 514 nm.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/08/20 alle ore 19:43:56