Determination of atenolol at a graphite-polyurethane composite electrode

被引:46
作者
Cervini, Priscila [1 ]
Ramos, Luiz Antonio [1 ]
Gomes Cavalheiro, Eder Tadeu [1 ]
机构
[1] Univ Sao Paulo, Inst Quim Sao Carlos, BR-13566590 Sao Carlos, SP, Brazil
基金
巴西圣保罗研究基金会;
关键词
atenolol; graphite-PU composite electrode; DPV;
D O I
10.1016/j.talanta.2006.10.017
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A bare graphite-polyurethane composite was evaluated as an alternative electrode in the determination of atenolol (ATN) in pharmaceutical formulations. Using a DPV procedure, a linear analytical curve was observed in the 4-100 mu mol L-1 range with a LOD = 3.16 mu mol L-1, without need of surface renewing between successive runs, with recoveries between 95.5 and 108%. Interference of other antibypertensive drugs was observed, but not from the usual components of tablets. The results of the proposed method agreed with HPLC ones within 95% confidence level. (C) 2006 Published by Elsevier B.V.
引用
收藏
页码:206 / 209
页数:4
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