FLOW-INJECTION METHOD FOR THE DETERMINATION OF TIN IN FRUIT JUICES USING SOLID-PHASE SPECTROPHOTOMETRY

被引：46
|
作者：
CAPITANVALLVEY, LF
VALENCIA, MC
MIRON, G
机构：
[1] Department of Analytical Chemistry, University of Granada
来源：
ANALYTICA CHIMICA ACTA | 1994年 / 289卷 / 03期
关键词：
FLOW INJECTION; UV-VISIBLE SPECTROPHOTOMETRY; FRUIT JUICES; TIN;
D O I：
10.1016/0003-2670(94)90013-Z
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
An integrated solid-phase spectrophotometric-flow-injection method is proposed for the determination of tin in fruit juices. The complex formed between Sn(IV) and Pyrocatechol Violet in the flow system is concentrated on Sephadex QAE A-25 gel packed in a flow cell. The analytes are monitored by UV-visible spectrophotometry at 576 nm. The method shows a detection limit of 0.3 ng ml(-1) and a linear range of 2-40 ng ml(-1).
引用
收藏
页码：365 / 370
页数：6
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