DETERMINATION OF TIN IN NATURAL-WATERS AND FRUIT JUICES BY SOLID-PHASE SPECTROPHOTOMETRY

被引：8
作者：
VALENCIA, MC [1 ]
GIMENO, D [1 ]
CAPITANVALLVEY, LF [1 ]
机构：
[1] UNIV GRANADA,FAC SCI,DEPT ANALYT CHEM,E-18071 GRANADA,SPAIN
来源：
ANALYTICAL LETTERS | 1993年 / 26卷 / 06期
关键词：
SOLID PHASE SPECTROPHOTOMETRY; TIN ANALYSIS; PYROCATECHOL VIOLET; NATURAL WATERS; FRUIT JUICES;
D O I：
10.1080/00032719308019898
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A method for the microdetermination of tin at the mug l-1 level has been developed, based on Solid-Phase Spectrophotometry (SPS). Tin reacts with Pyrocatechol Violet at pH 3 to form a 2:1 (PCV:Sn) complex which is fixed on a dextran type anion-exchange gel. The gel phase absorbance is measured directly, and allows for the determination of tin in the range of 0.8 - 15.0 ug l-1, with an RSD of 4.3%. The method has been applied to the determination of Sn(IV) in natural and sea waters and pineapple juice.
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收藏
页码：1211 / 1226
页数：16
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