单层碳纳米管修饰电极上盐酸曲普利啶的电化学行为及其应用研究  

Studies on electrochemical behaviors of tripro-lidine and its application at a SWNTs-modified glassy carbon electrode

作　　者：吴奕辉[1] 段黎丽[1] 徐茂田[1] 

机构地区：[1]中南大学化学化工学院,长沙410083

出　　处：《分析试验室》2007年第11期108-111,共4页Chinese Journal of Analysis Laboratory

摘　　要：应用循环伏安法研究了盐酸曲普利啶在碳纳米管修饰电极上的电化学行为。结果表明：在0.1 mol/L磷酸盐缓冲溶液（pH 6.9）中,盐酸曲普利啶产生一灵敏的氧化峰,其峰电位为0.81 V（vs.Ag/AgCl）,峰电流与盐酸曲普利啶在1.0×10^-6～1.3×10^-4mol/L浓度范围内呈线性关系,检出限为5.0×10^-7mol/L,已用于片剂中盐酸曲普利啶的测定。Electrochemical behavior of triprolidine hydrochloride on the SWNTs-modified glassy carbon electrode is investigated by cyclic voltammetry （CV）. Results show that the TPHC in phosphate buffer solution （pH 6.9） has a sensitive oxidation peak at 0.81 V （ vs. Ag/AgCm） using the modified electrode. The oxidation current of TPHC is linear with its concentration in the range of 1.0 × 10^-6 ～ 1.3 × 10^-4 mol/L and the determination limit is 5.0×10^-7 mol/L. The results are satisfactory while the modified electrode is applied to the determination of TPHC in tablet samples.

关 键 词：单层碳纳米管 盐酸曲普利啶 化学修饰电极 循环伏安法 

分 类 号：O657.1[理学—分析化学]