极化玻碳电极和聚L-半胱氨酸玻碳修饰电极稳定性的研究Study on the Stabilities of the Activated Glassy Carbon Electrode and Poly(L-cysteine) Modified Electrode
李小春,马心英,李霞,李伟,袁超,郁章玉
摘要(Abstract):
在含有5.0×10-3mol.L-1EP的浓度为0.5 mol.L-1H2SO4溶液中,采用循环伏安法研究并比较了极化玻碳电极与聚L-半胱氨酸修饰电极的稳定性.实验结果表明,两者都表现出较为可逆的伏安响应,并对肾上腺素的电化学氧化具有良好的电催化性能,但极化玻碳电极的稳定性差,而聚L-半胱氨酸修饰电极则表现出良好的稳定性.
关键词(KeyWords): 肾上腺素;循环伏安法;玻碳电极;L-半胱氨酸
基金项目(Foundation): 中国博士后科学基金资助项目(20080430193);; 山东省博士后创新专项基金资助项目(200702020);; 菏泽学院博士基金资助项目(200701)
作者(Author): 李小春,马心英,李霞,李伟,袁超,郁章玉
DOI: 10.16393/j.cnki.37-1436/z.2009.05.020
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