Differential pulse anodic stripping voltammetric determination of traces of tin using a glassy carbon electrode modified with bismuth and a film of poly(bromophenol blue)

被引：0
|
作者：
Gongjun Yang
Yujuan Wang
Fen Qi
机构：
[1] China Pharmaceutical University,School of Pharmacy
[2] Yangzhou University,College of Chemistry and Chemical Engineering
来源：
Microchimica Acta | 2012年 / 177卷
关键词：
Poly(bromophenol blue); Differential pulse voltammetry; Tin; Canned food;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We report on an anodic stripping voltammetric method for the determination of tin using a glassy carbon electrode modified with bismuth and poly(bromophenol blue). After an accumulation time of 60 s at −1.20 V (vs. SCE), the response of the electrode to tin in 1.0 M HCl is linear in the concentration ranges from 20 nM to 1.0 μM, and from 1.0 μM to 20 μM, with a detection limit of 7.0 nM (at an SNR of 3) and with relative standard deviations in the order of 3.0–3.8%. The method was validated by comparing the results with those obtained by AAS and successfully applied to the determination of tin in canned food.
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页码：365 / 372
页数：7
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