[1]曾春梅,李容,艾伦弘.茶碱在聚溴甲酚绿/多壁碳纳米管修饰电极上的电化学行为研究[J].西华师范大学学报(自然科学版),2014,35(02):140-144.
 ZENG Chun-mei,LI Rong,AI Lun-hong.Electrochemical Behaviors of Theophylline on Polybromocresol Green Film/Multiwalled Carbon Nanotubes Modified Electrode[J].Journal of China West Normal University(Natural Sciences),2014,35(02):140-144.
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茶碱在聚溴甲酚绿/多壁碳纳米管修饰电极上的电化学行为研究
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《西华师范大学学报(自然科学版)》[ISSN:1673-5072/CN:51-1699/N]

卷:
35
期数:
2014年02期
页码:
140-144
栏目:
出版日期:
2014-06-20

文章信息/Info

Title:
Electrochemical Behaviors of Theophylline on Polybromocresol Green Film/Multiwalled Carbon Nanotubes Modified Electrode
作者:
曾春梅李容艾伦弘
西华师范大学化学化工学院,化学合成与污染控制四川省重点实验室,四川 南充637009
Author(s):
ZENG Chun-mei LI Rong AI Lun-hong
Chemical synthesis and pollution control key lab of sichuan province, College of Chemistry and Chemical Engineering,China West Normal University, Nanchong 637009,China
关键词:
溴甲酚绿多壁碳纳米管修饰电极电催化
Keywords:
theophylline bromocresol green multiwalled carbon nanotube modified electrode
分类号:
O657.1
文献标志码:
摘要:
采用两种方法制备了多壁碳纳米管掺杂改性的聚溴甲酚绿修饰电极,以循环伏安法研究了茶碱在电极上的电化学行为.结果表明:以多层修饰法制备的聚溴甲酚绿/多壁碳纳米管复合膜修饰电极(PBG/MWNT/GC)最能发挥二者的电活性作用,茶碱在该电极上的电催化效果最佳,且该电极过程是吸附控制的不可逆电氧化过程,电子数和质子数均为2,氧化峰电流ip与浓度c在8.0×10-6-3.0×10-4 mol/L范围内呈良好的线性关系,线性方程为:ip(A)=3.1475×10-6-0.0741c (mol/L),R=-0.9950,检出限(S/N=3)为2.34×10-8mol/L,回收率为97.30%-101.37%.
Abstract:
Multiwalled carbon nanotubes(MWNT) were modified to dope polybromocresol green film(PBG), and two kinds of modified electrodes were prepared by different modification methods. The results showed that the polybromocresol green film/multiwalled carbon nanotube composite film electrode(PBG/MWNT/GC) prepared by multilayer modification was the best one to develop the electric activity of MWNT and PBG. The response of theophylline on this electrode was the best, the reaction of theophylline on PBG/MWNT/GC was adsorptioncontrolled irreversible electro oxidation process, and its number of electron transfer and proton were both 2. A good linear relationship was observed between the oxidation peak current and concentration of theophylline in the range of 8.0×10-6-3.0×10-4 mol/L(R=-0.9950), with a detection limit(S/N=3) of 2.34×10-8mol/L. The sample recovery was between 97.30% and 101.37%.

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备注/Memo

备注/Memo:
收稿日期:2012-12-13 基金项目:西华师范大学科研启动基金项目(NO 07B010). 作者简介:曾春梅(1982-),女,四川自贡人,西华师范大学化学化工学院讲师,主要从事电化学与材料化学研究.
更新日期/Last Update: 2014-06-20