摘要
用共价修饰法制备了银纳米修饰电极,通过透射电子显微镜(TEM)、紫外可见光谱和电化学交流阻抗谱进行了表征和研究。实验表明,该修饰电极对灿烂甲酚蓝(BCB)的电化学氧化还原有较强的催化作用,氧化峰电流与其浓度在4.0×10-7～2.1×10-4mol L范围内成线性关系,相关系数为0.9989,检出限为1.5×10-8mol L。
A silver nanoparticles modified electrode has been prepared by covalent bonding, and its properties have been investigated by transmission electron microscopy (TEM), UV-Vis and electrochemical impedance spectroscopy (EIS). It is found that this modified electrode can catalyze the redox of brilliant cresyl blue (BCB) and can be applied to the determination with satisfactory results. The peak current of BCB increases linearly with its concentration in the range of 4.0×10^(-7)～2.1×10^(-4) mol/L with the correlation coefficient of 0.9989. The detection limit is 1.5×10^(-8) mol/L.
出处
《分析试验室》
CAS
CSCD
北大核心
2004年第12期78-81,共4页
Chinese Journal of Analysis Laboratory
基金
国家教育部重点科技基金(批准号:00117)资助
关键词
银纳米粒子
修饰电极
灿烂甲酚蓝
电化学催化
Silver nanoparticles
Modified electrode
Brilliant cresyl blue
Electrocatalysis
