碳糊电极阳极吸附伏安法测定雷贝拉唑
投稿时间:2007-12-11  修订日期:2007-01-15  点此下载全文
引用本文:郭利民,钟世华,李伟,黄叶菊.碳糊电极阳极吸附伏安法测定雷贝拉唑[J].药学实践杂志,2008,(1):35~37
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作者单位E-mail
郭利民 湖南省益阳市中心医院药剂科,湖南益阳413000 Sh-zhung@126.com 
钟世华 湖南师范大学化学化工学院,湖南长沙410081  
李伟 湖南省益阳市中心医院药剂科,湖南益阳413000  
黄叶菊 湖南师范大学化学化工学院,湖南长沙410081  
中文摘要:目的:建立测定雷贝拉唑含量的新方法。方法:采用碳糊电极阳极吸附伏安法,在1.8mol/L H2SO4底液中,通过富集用碳糊电极阳极吸附伏安法研究雷贝拉唑的电化学行为。结果:阳极峰电位为0.498V(vs.SCE),峰电流与雷贝拉唑的浓度在4.15×10-7-3.37×10-6mol/L范围内呈良好的线性关系,检出限为6.705×10-11mol/L。结论:本方法简便准确,适用于雷贝拉唑的含量测定。
中文关键词:雷贝拉唑  碳糊电极  阳极吸附伏安法
 
Determination of rabeprazole at a carbon paste electrode by anodic adsorptive voltammetry
Abstract:Objective:To establish a new method for the determination of rabeprazole.Methods: Anodic adsorptive voltammetry with a carbon paste electeode(CPE) was used. Rabeprazole was concentrated on the electrode and determined by adsorptive voltammetry in supporting solution of 1.8 mol/L H2SO4.Results:The anthodic peak potential of raberazole was at 0.498 V(vs.SCE). The peak currents were linear with the concentration of rabeprazole over the range of 4.15×10-7~3.73×10--6mol/L, with the detection limit 6.705×10--11 mol/L. Conclusion: This method is suitable for the determination of rabeprazole, and it is covenient and accurate.
keywords:rabeprazole  canbon paste etectrode  anodic adsorptive voltammetry
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