EXTRACTION-SPECTROPHOTOMETRIC DETERMINATION OF TIN IN ENVIRONMENTAL-SAMPLES

被引：2
作者：
CHAKRABORTY, AR
PATEL, KS
MISHRA, RK
机构：
[1] Department of Chemistry, Ravishankar University, Raipur, 492 010, M. P.
来源：
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY | 1991年 / 45卷 / 04期
关键词：
TIN(IV) DETERMINATION; EXTRACTION; SPECTROPHOTOMETRY; N; N'-DIPHENYLBENZAMIDINE; ENVIRONMENTAL SAMPLE ANALYSIS;
D O I：
10.1080/03067319108027388
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A highly selective and sensitive method for the spectrophotometric determination of tin(IV) in industrial waste waters is described. It is based on the selective extraction of tin(IV) with bromide into a chloroform solution of N, N-diphenylbenzamidine(DPBA), and subsequent treatment with iodide. The molar absorptivity of the iodostannate complex formed is (1.50) x 104 1 mole~ 1 cm'1at /max= 385 nm. The detection limit of the method is 0.1 ppm. The method is highly selective as none of the common metals and anions tested interfere. © 1991, Taylor & Francis Group, LLC. All rights reserved.
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页码：229 / 233
页数：5
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