Photokinetic study of the Rose Bengal B-tin(II) reaction. Determination of tin in metals

被引：1
|
作者：
MartinezIzquierdo, ME
Durand, JS
CabreraMartin, A
VicentePerez, S
机构：
[1] UNIV NACL EDUC DISTANCIA,DEPT CIENCIAS ANALIT,E-28080 MADRID,SPAIN
[2] UNIV POLITECN MADRID,FAC INFORMAT,E-28040 MADRID,SPAIN
[3] CSIC,E-28006 MADRID,SPAIN
来源：
ANALYTICA CHIMICA ACTA | 1996年 / 325卷 / 1-2期
关键词：
kinetic methods; Rose Bengal B; tin; metals;
D O I：
10.1016/0003-2670(96)00020-7
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A kinetic method activated by photons for the determination of tin in steels and other alloys using Rose Bengal B (RBB) as analytical reagent, is proposed. The optimal conditions are: pH 12.0, 1.0 x 10(-6) M RBB, 0.1 M NaCl at 25 degrees C. The maximum wavelength of excitation and emission of fluorescence are 550 nm and 568 nm, respectively. The calibration graph is linear over the range 0.0-17 mu g ml(-1) tin, with a 5.4% coefficient of variation at 9.5 mu g ml(-1) tin(II) (n = 10) ten replicates. No interferences of metals or redox reagents are observed.
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页码：81 / 86
页数：6
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