On-chip generated mercury microelectrode for heavy metal ion detection |
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| Authors: | Zhu Xiao-Shan Gao Chuan Choi Jin-Woo Bishop Paul L Ahn Chong H |
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| Institution: | MicroSystems and BioMEMS Lab, Department of Electrical and Computer Engineering and Computer Science, University of Cincinnati, Cincinnati, OH 45221-0030, USA. xzhu@ececs.uc.edu |
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| Abstract: | In this paper, the on-chip generated mercury microelectrode for heavy metal ion detection has been presented. A mercury droplet (approximately 150 microm in diameter) is on-chip generated to form a microelectrode through the mercury microfluidics control. The mercury microelectrode is used to electrochemically detect the heavy metal ions. The sample solutions with different concentration of heavy metal ions (Pb(2+) and Cd(2+)) have been successfully detected on the mercury droplet microelectrode using the square wave stripping voltammetry. |
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