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研究论文

微分脉冲伏安法检测扶他林片中的双氯芬酸钠

  • 王桂芬 ,
  • 朴元哲
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  • 延边大学理工学院化学系!延吉133002,延边大学理工学院化学系!延吉133002

收稿日期: 2000-02-28

  修回日期: 2000-02-28

  网络出版日期: 2000-02-28

Determination of Diclofenac in Voltalin Tablets by Differential Pulse Voltammetry

  • WANG Gui_fen ,
  • PIAO Yuan_zhe
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  • (Department of Chemistry,College of Science and Technology, Yanbian University,Yanji 133002

Received date: 2000-02-28

  Revised date: 2000-02-28

  Online published: 2000-02-28

摘要

用微分脉冲伏安法在 +0 .6~ +1.2V(vs.SCE)范围内对双氯芬酸钠盐酸溶液进行循环扫描 ,发现在电位 0 .9V处有一灵敏的氧化峰 .该氧化峰的峰电流与双氯芬酸钠的浓度 (5 .0× 10 -7~ 6 .0× 10 -6mol/L)呈良好的线性关系 .在 2 .0× 10 -6mol/L双氯芬酸钠溶液中进行 10次实验 ,该峰的峰电流相对标准偏差为 3.5 % .用此法检测扶他林片中的双氯芬酸钠 ,所得结果与紫外分光光度法测定的结果一致 .

本文引用格式

王桂芬 , 朴元哲 . 微分脉冲伏安法检测扶他林片中的双氯芬酸钠[J]. 电化学, 2000 , 6(1) : 112 -115 . DOI: 10.61558/2993-074X.3216

Abstract

Diclofenac,dissolved in a base solution of chlorhydric acid,showed a sensitive oxidation peak at 0.91 V(vs.SCE) when the solution was cyclically swept from +0.6 to +1 2 V(vs.SCE) by differential pulse voltammetry at GCE.There was a good linear relationship between the differential pulse peak current and the concentraion of diclofenac in the range from 5.0×10 -7 to 6.0×10 -6 mol/L,and the relative standard deviation is 3.5%(n=10).When determining the content of diclofenac in voltalin tablets, we have got the same results by this method as ultraviolet spectrophotometry.

参考文献

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