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Adsorptive Stripping Determination Of Trace Nickel Using Bismuth Modified Mesoporous Carbon Composite Electrode

Author

Listed:
  • RUIZHUO OUYANG

    (University of Shanghai for Science and Technology, Shanghai 200093, P. R. China)

  • KAI FENG

    (University of Shanghai for Science and Technology, Shanghai 200093, P. R. China)

  • YONGFU SU

    (#x2020;Heilongjiang Institute of Veterinary Science, Qiqihar 161005, P. R. China)

  • TIANYU ZONG

    (University of Shanghai for Science and Technology, Shanghai 200093, P. R. China)

  • XIA ZHOU

    (University of Shanghai for Science and Technology, Shanghai 200093, P. R. China)

  • TIAN LEI

    (University of Shanghai for Science and Technology, Shanghai 200093, P. R. China)

  • PENGPENG JIA

    (University of Shanghai for Science and Technology, Shanghai 200093, P. R. China)

  • PENGHUI CAO

    (University of Shanghai for Science and Technology, Shanghai 200093, P. R. China)

  • YUEFENG ZHAO

    (University of Shanghai for Science and Technology, Shanghai 200093, P. R. China)

  • NING GUO

    (University of Shanghai for Science and Technology, Shanghai 200093, P. R. China)

  • HAIZHOU CHANG

    (University of Shanghai for Science and Technology, Shanghai 200093, P. R. China)

  • YUQING MIAO

    (University of Shanghai for Science and Technology, Shanghai 200093, P. R. China)

  • SHUANG ZHOU

    (#x2021;Cancer Institute, Tongji University School of Medicine, Shanghai 200092, P. R. China)

Abstract

Novel bismuth nanoparticle-modified mesoporous carbon (MPC) was successfully prepared on a glassy carbon electrode (Bi@MPC/GCE) for the adsorptive stripping voltammetric determination of nickel by complexing with dimethylglyoxime (DMG). The presence of MPC obviously improved the properties of Bi particles like the electron transfer ability, particle size and hydrophicility, important parameters to achieve preferable analytical performances of Bi@MPC/GCE toward Ni(II). The best electrochemical behaviors of Bi@MPC/GCE was obtained for the stripping determination of Ni(II), compared with electrodes individually modified with Bi and MPC. The synergic effect between metallic Bi and ordered MPC (forming a 3D array like Bi microelectrodes) made major contribution to such improved electrochemical properties of Bi@MPC/GCE for Ni(II) sensing. The good linear analytical curve was achieved in a Ni(II) concentration range from 0.1μM to 5.0μM with a correlation coefficient of 0.9995. The detection limit and sensitivity were calculated to be 1.2nM (S∕N=3) and 1410μAmM−1cm−2, respectively. The new method was successfully applied to Ni(II) determination in soybean samples with recoveries higher than 99% and proved to be a simple, efficient alternative for Ni(II) monitoring in real samples.

Suggested Citation

  • Ruizhuo Ouyang & Kai Feng & Yongfu Su & Tianyu Zong & Xia Zhou & Tian Lei & Pengpeng Jia & Penghui Cao & Yuefeng Zhao & Ning Guo & Haizhou Chang & Yuqing Miao & Shuang Zhou, 2017. "Adsorptive Stripping Determination Of Trace Nickel Using Bismuth Modified Mesoporous Carbon Composite Electrode," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 24(07), pages 1-13, October.
    • Handle: RePEc:wsi:srlxxx:v:24:y:2017:i:07:n:s0218625x17500949
    DOI: 10.1142/S0218625X17500949
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