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Vol. 26 No. 9 (2014): Vol 26 Issue 9

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Gold Microelectrode Arrays Based Electrode for Determination of Trace Copper in Seawater

https://doi.org/10.14233/ajchem.2014.16454
Shijie Wu
The Key Lab in Molecular and Nano-Materials Probes of the Ministry of Education of China, College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, P.R. China
Dawei Pan
Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS); Shandong Provincial Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai 264003, Shandong, P.R. China
Zhengyin Yu
State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, P.R. China
Qi Kang
The Key Lab in Molecular and Nano-Materials Probes of the Ministry of Education of China, College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, P.R. China
Dazhong Shen
The Key Lab in Molecular and Nano-Materials Probes of the Ministry of Education of China, College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, P.R. China

Corresponding Author(s) : Qi Kang

dwpan@yic.ac.cn; qikang@sdnu.edu.cn

Asian Journal of Chemistry, Vol. 26 No. 9 (2014): Vol 26 Issue 9

Abstract

We report a novel and facile gold microelectrode array (Au MEA) for the determination of trace Cu2+ by differential pulse anodic stripping voltammetry (DPASV). The gold microelectrode array was fabricated by a multi-step micro-fabrication approach combining sputtering for the deposition of metals and the dielectric material (SiO2) on the surface of a silicon wafer and photolithography for the definition of the geometry of the electrode. Due to the rapid mass transporting and low background current of gold microelectrode array, low detection limit (1.3 pM) and wide linear range (10-150 pM) can be obtained for the determination of Cu2+. The practical application of the proposed electrode has been carried out for the determination of trace level of Cu2+ in real seawater sample.

Keywords

Microelectrode Array Determination Copper Seawater
Wu, S., Pan, D., Yu, Z., Kang, Q., & Shen, D. (2014). Gold Microelectrode Arrays Based Electrode for Determination of Trace Copper in Seawater. Asian Journal of Chemistry, 26(9), 2741–2744. https://doi.org/10.14233/ajchem.2014.16454
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