期刊
BIOELECTROCHEMISTRY
卷 65, 期 1, 页码 41-46出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.bioelechem.2004.06.001
关键词
brucine; 4-amino-2mercaptopyrimidine; self-assembled monolayer (SAMs); square wave adsorptive stripping voltammetry (SWASV)
4-Amino-2-mercaptopyrimidine self-assembled monolayer (AMP SAMs/Au) was prepared on a gold electrode. The AMP SAMs/Au was characterized by using attenuated total reflection-fourier transform infrared (ATR-FTIR) and A.C. Impedance. The electrochemical behavior of brucine on AMP SAMs/Au was studied by cyclic voltammetry (CV) and square wave adsorptive stripping voltammetry (SWASV). The modified electrode showed an excellent electrocatalytic activity for the redox of brucine. The catalytic current increased linearly with the concentration of brucine in the range of 4.0 x 10(-7) to 2.0 x 10(-4) mol l(-1) by square wave voltammetry response. The detection limit was 6.0 x 10(-8) mol l(-1). (C) 2004 Elsevier B.V. All rights reserved.
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