摘要
制备了钯(Pd)/壳聚糖-还原氧化石墨烯(CS-RGO)修饰电极。采用循环伏安法研究了利发霉素在该修饰电极上的电化学行为,并利用示差脉冲伏安法对其进行测定。在0.1 mol·L^-1的磷酸盐缓冲溶液(PBS,pH=7.0)中,利发霉素的氧化峰电流大小与其浓度在1.0×10^-7~1.0×10^-3 mol·L^-1浓度范围内成良好的一次线性关系,检出限为7.4×10^-9 mol·L^-1(S/N=3)。此外,该修饰电极具有很好的稳定性和抗干扰能力。
Pd/CS-RGOmodified electrode was prepared by coupling with thedrop coating method and electrodeposition method.The electrochemical behaviors of rifampicin on this electrode were studied.The results showed that the electrode exhibited a good electrocatalytic effect onthe redox ofrifampicin.Differential pulse voltammetry was used to detect rifampicin,the oxidation peak current of rifampicin has a good linear relationship with concentration in the range from 1.0×10^-7~1.0×10^-3,the detection limit was 3.4×10^-9 mol·L^-1(S/N=3).This electrode had good stability,reproducibility and high selectivity.
作者
陈志兵
吴晴晴
张锐
CHEN Zhi-Bing;WU Qing-qing;ZHANG Rui(Department of Food Engineering,Weihai Ocean Vocational College,Rongcheng 264300,China)
出处
《化学研究与应用》
CAS
CSCD
北大核心
2019年第9期1679-1683,共5页
Chemical Research and Application
基金
国家自然科学基金项目(21271136)资助
威海海洋职业学院科研课题(WHZKY2015-08)资助
作者简介
联系人简介:陈志兵(1980-),男,教授,主要从事纳米材料合成及光电性质研究。E-mail:szxyczb@163.com.
