文献类型：期刊文献

英文题名：Prototypical Nonelectrochemical Method for Surface Regeneration of an Integrated Electrode in a PDMS Microfluidic Chip

作者：Mu, Xuan[1,2];Liang, Qionglin[1];Hu, Ping[3];Yao, Bo[1];Ren, Kangning[1];Wang, Yiming[1];Luo, Guoan[1,2]

机构：[1]Tsinghua Univ, Dept Chem, Minist Educ, Key Lab Bioorgan Phosphorus Chem & Chem Biol, Beijing 100084, Peoples R China;[2]E China Univ Sci & Technol, Sch Pharm, Shanghai 200237, Peoples R China;[3]E China Univ Sci & Technol, Coll Chem & Mol Engn, Shanghai 200237, Peoples R China

年份：2009

卷号：42

期号：13

起止页码：1986

外文期刊名：ANALYTICAL LETTERS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000269770400005)】；

基金：This research was supported by funding from the National Basic Research Program (973 Program) of China (2007CB714505) and the Ministry of Education of China ( No. 20080031012).

语种：英文

外文关键词：Dopamine; electrochemistry detection; microfluidic chip; PDMS; surface regeneration

摘要：A prototypical method for surface regeneration of an integrated electrode in a microfluidic chip is demonstrated. A platinum wire as working electrode was mounted in a polydimethylsiloxane chip vertical to the chip through the channel. The regeneration of the electrode was easily achieved by drawing the platinum wire out for 5mm, because the area exposed to the channel or the stream would be altered. With continuous motion, the wire electrode can maintain a fresh surface just like a dropping mercury electrode. The current-time curve and open circuit potential (OCP) of dopamine solution show the performance of this prototypical system.