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FLUORESCENCE AND METALLIC VALENCY STATES .3. DETERMINATION OF TIN

被引：18
作者：
PAL, BK
RYAN, DE
机构：
[1] Department of Chemistry, Dalhousie University, Halifax
来源：
ANALYTICA CHIMICA ACTA | 1969年 / 48卷 / 02期
关键词：
D O I：
10.1016/S0003-2670(01)85490-8
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Tin is selectively and simply determined in aqueous solution by measuring the fluorescence produced with oxine-5-sulphonic acid at a pH of 4-5.2 ; intensities are linear from 5 p.p.b. to 0.25 p.p.m. The fluorescence intensity attains a maximum after 10 min and is constant for hours. Few ions interfere and less than 1 p.p.b. can be determined in alcoholic solutions. Fluorescence spectra and intensities are independent of the valence state of the metal. © 1969.
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