An Amperometric Biological Toxic Hydrazine Sensor Based on Multiwalled Carbon Nanotubes and Iron Tetrasulfonated Phthalocyanine Composite Modified Electrode

Authors

  • Rajkumar Devasenathipathy,

    1. Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC
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  • Selvakumar Palanisamy,

    1. Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC
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  • Shen-Ming Chen,

    Corresponding author
    1. Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC
    • Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC

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  • Chelladurai Karuppiah,

    1. Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC
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  • Veerappan Mani,

    1. Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC
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  • Sayee Kannan Ramaraj,

    1. Post Graduate and Research Department of Chemistry, Thiagarajar College, Madurai-625009, Tamilnadu, India, Fax: +886-2-27025238; Tel: +886-2-27017147
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  • M. Ajmal Ali,

    1. Department of Botany and Microbiology, College of Science, King Saud University Riyadh 11451, Saudi Arabia
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  • Fahad M. A. Al-Hemaid

    1. Department of Botany and Microbiology, College of Science, King Saud University Riyadh 11451, Saudi Arabia
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Abstract

Hydrazines are well-known for their diverse biological properties but especially for their toxicity. An amperometric hydrazine sensor was developed at multi-walled carbon nanotubes (MWCNT) and iron tetrasulfonated phthalocyanine (FeTsPc) composite modified electrode for the first time. The TEM and UV-Vis spectroscopy results revealed the successful formation of MWCNT/FeTsPc composite. Compared with the response of MWCNT and FeTsPc modified electrodes, the MWCNT/FeTsPc composite showed enhanced oxidation current response with lower overpotential for hydrazine. Under optimum conditions, the amperometric it response of hydrazine was linear in the concentration range from 100 nM L−1 to 3 μM L−1 with the detection limit of 7.6 nM L−1. The response time of hydrazine was found as 6 s with a high sensitivity of 7.615 μA/μM L−1 cm−2.

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