Non-ionic micellar solubilization -: spectrofluorimetric determination of trace of germanium(IV) with quercetin in real samples

被引：11

作者：

García-Campaña, AM ^{[1
]}

Barrero, FA ^{[1
]}

González, AL ^{[1
]}

Ceba, MR ^{[1
]}

机构：

[1] Univ Granada, Fac Sci, Dept Analyt Chem, E-18071 Granada, Spain

来源：

ANALYTICA CHIMICA ACTA | 2001年 / 447卷 / 1-2期

关键词：

germanium(IV); three-variable Doehlert designs; flourescence; spectrofluorometric method;

D O I：

10.1016/S0003-2670(01)01288-0

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A spectrofluorometric method is described for the determination of germanium(IV) based on its complexation reaction with quercetin in presence of Brij-35. The fluorescence is monitored at 552 mn with excitation at 432 nm. The pH, quercetin and Brij-35 concentrations were optimized simultaneously using the response surface methodology from sequential experimental three-variable Doehlert designs. Interferences in this determination have been studied. The detection limit is 7.4 ng ml(-1) and the linear range is between 7.4 and 150 ng ml-(1). The method has been applied to the determination of germanium in a drug and in wholemeal oats. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：219 / 228

页数：10

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