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Titolo:
Spectrophotometric determination of samarium(III) with chrome azurol S in the presence of cetylpyridinium chloride
Autore:
Soylak, M; Turkoglu, O;
Indirizzi:
Erciyes Univ, Dept Chem, Fac Art & Sci, TR-38039 Kayseri, Turkey Erciyes Univ Kayseri Turkey TR-38039 Art & Sci, TR-38039 Kayseri, Turkey
Titolo Testata:
TALANTA
fascicolo: 1, volume: 53, anno: 2000,
pagine: 125 - 129
SICI:
0039-9140(20001002)53:1<125:SDOSWC>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Keywords:
spectrophotometry; samarium(III); chrome azurol S; cetylpyridinium chloride;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
15
Recensione:
Indirizzi per estratti:
Indirizzo: Soylak, M Erciyes Univ, Dept Chem, Fac Art & Sci, TR-38039 Kayseri, TurkeyErciyes Univ Kayseri Turkey TR-38039 TR-38039 Kayseri, Turkey
Citazione:
M. Soylak e O. Turkoglu, "Spectrophotometric determination of samarium(III) with chrome azurol S in the presence of cetylpyridinium chloride", TALANTA, 53(1), 2000, pp. 125-129

Abstract

A sensitive, simple method for the determination of trace amounts of samarium by spectrophotometry is described based on the formation of the samarium-chrome azurol S (CAS) complex in micellar medium. The molar absorptivities of the complexes at pH 7.5 at 505 nm were 3.6 x 10(4) and 1.4 x 10(5) 1 mol(-1) cm(-1) for water media and cetylpyridinium chloride (CPC), respectively. Beer's law is obeyed from 0.05-2 mg 1(-1) of samarium at 505 nm as Sm-CAS-CPC complex. Optimal conditions such as reagent amounts, and pH for thesamarium determination were reported. The effects of foreign ions were also investigated. The proposed method was successfully applied to the determination of samarium contents in synthetic samples. (C) 2000 Elsevier ScienceB.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 10/04/20 alle ore 16:09:34