首页   按字顺浏览 期刊浏览 卷期浏览 Determination of Tin in Natural Waters and Fruit Juices by Solid Phase Spectrophotometry
Determination of Tin in Natural Waters and Fruit Juices by Solid Phase Spectrophotometry

 

作者: M.C. Valencia,   D. Gimeno,   L.F. Capitan-Vallvey,  

 

期刊: Analytical Letters  （Taylor Available online 1993）
卷期: Volume 26, issue 6  

页码: 1211-1226

 

ISSN:0003-2719

 

年代: 1993

 

DOI:10.1080/00032719308019898

 

出版商: Taylor & Francis Group

 

关键词: Solid Phase Spectrophotometry;Tin Analysis;Pyrocatechol Violet;Natural Waters;Fruit Juices.

 

数据来源: Taylor

 

摘要:

A method for the microdetermination of tin at the μg 1−1level 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 μg 1−1, 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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