L-半胱胺酸自组膜修饰电极的制备及其电化学行为的研究  

Preparation of the modified gold electrode of the L-cysteine and the Research of Its Actions of Elec-chemistry

作　　者：张玉琴[1] 

机构地区：[1]芜湖职业技术学院,安徽芜湖241000

出　　处：《芜湖职业技术学院学报》2005年第4期11-13,共3页Journal of Wuhu Institute of Technology

摘　　要：将L-半胱胺酸修饰到金电极表面,通过循环伏安法、阻抗法进行表征。在pH低时,高频部分的半圆的半径较pH高时的要大,其原因可能跟探针离子与L-半胱胺酸的静电作用有关。L-cysteine is modified onto the surface of the gold electrode. The L-cysteine modified gold electrode is characterized by the method of the cyclic voltammetery （CV） and of electrochemistry impedance spectroscropy （EIS）. Radius of the semicircles in the part of the high frequency zone at low Ph value is larger than that at high Ph value and perhaps because of the static effect of probe and L-cysteine.

关 键 词：修饰电极 阻抗 循环伏安 

分 类 号：O657.1[理学—分析化学]