Kang Wei-jun
2008
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Journal
Journal of Southwest University
Abstract
Meso-2,3-dimercaptosuccinic acid(DMSA) modified Au electrode by S-Au bond to form self-assembled monolayer is investigated,and the electrochemical properties of the modified electrode is discussed.The modified electrode shows a good electrochemically catalytic activity for the oxidation of ascorbic acid(AA).The catalytic current of AA versus its concentration has a good linearity in the range of 3.98×10-6-2.56×10-3 mol/L, with a detection limit of 2.01×10-6 mol/L.This method can be applied to the determination of AA in medicine samples.