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Titolo:
Study of the absorption spectra of the 4f electron transitions of the praseodymium complex with ciprofloxacin and its analytical application
Autore:
Jiang, W; Wang, NX; Men, QJ; Si, ZK; Xu, XQ; Liu, FX; Wu, B;
Indirizzi:
Shandong Univ, Dept Chem, Jinan 250100, Peoples R China Shandong Univ Jinan Peoples R China 250100 Jinan 250100, Peoples R China Shandong Prov City Bldg Sch, Shandong, Peoples R China Shandong Prov City Bldg Sch Shandong Peoples R China g, Peoples R China Shandong Univ Hosp, Jinan 250100, Peoples R China Shandong Univ Hosp Jinan Peoples R China 250100 250100, Peoples R China
Titolo Testata:
ANALYST
fascicolo: 8, volume: 126, anno: 2001,
pagine: 1440 - 1443
SICI:
0003-2654(200108)126:8<1440:SOTASO>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
RARE-EARTH MIXTURES; 3RD-DERIVATIVE SPECTROPHOTOMETRY; ERBIUM COMPLEXES; NEODYMIUM;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Physical, Chemical & Earth Sciences
Citazioni:
13
Recensione:
Indirizzi per estratti:
Indirizzo: Wang, NX Shandong Univ, Dept Chem, Jinan 250100, Peoples R China Shandong Univ Jinan Peoples R China 250100 100, Peoples R China
Citazione:
W. Jiang et al., "Study of the absorption spectra of the 4f electron transitions of the praseodymium complex with ciprofloxacin and its analytical application", ANALYST, 126(8), 2001, pp. 1440-1443

Abstract

Ciprofloxacin (CPFX) is proposed as a reagent for the derivative spectrophotometric determination of praseodymium in mixed rare earths. The absorption spectra of 4f electron transitions of the praseodymium complex with CPFX was studied by normal and derivative spectrophotometry. The stoichiometry of the praseodymium-CPFX complex was calculated by the molar ratio and continuous variations methods. A ratio of Pr to CPFX of 1 :3 was found. The absorption bands of the 4f electron transitions of the complex were enhanced markedly. Using the third derivative spectrum. Beer's law was obeyed up to 35mug cm(-3) of praseodymium. The relative standard deviation is 0.62% for 14 mug cm(-3) of praseodymium. The detection and quantification limits were 0.17 and 0.56 mug cm(-3) of praseodymium, respectively. A method for the direct determination of praseodymium in mixtures of rare earths with good accuracy and selectivity is described.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/01/20 alle ore 00:39:11