Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Amperometric Morphine Detection Using Pt-Co Alloy Nanowire Array-modified Electrode

  • Tao, Manlan (College of Chemistry and Chemical Engineering, Yunnan Normal Universityiversity) ;
  • Xu, Feng (College of Chemistry and Chemical Engineering, Yunnan Normal University) ;
  • Li, Yueting (College of Chemistry and Chemical Engineering, Yunnan Normal University) ;
  • Xu, Quanqing (College of Chemistry and Chemical Engineering, Yunnan Normal University) ;
  • Chang, Yanbing (College of Chemistry and Chemical Engineering, Yunnan Normal University) ;
  • Wu, Zaisheng (State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University) ;
  • Yang, Yun-Hui (College of Chemistry and Chemical Engineering, Yunnan Normal University)
  • Received : 2009.11.25
  • Accepted : 2010.05.19
  • Published : 2010.07.20
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Abstract

Pt-Co alloy nanowire array was directly synthesized by electrochemical deposition with polycarbonate template at -1.0V and subsequent chemical etching of the template. The use of Pt-Co alloy nanowire array-modified electrode (Pt-Co NAE) for the determination of morphine (MO) is described. The morphology of the Pt-Co alloy nanowire array has been investigated by scanning electron microscopy (SEM) and energy disperse X-ray spectroscopy (EDS) analysis), respectively. The resulting Pt-Co NAE offered a linear amperometric response for morphine ranging from $2.35\times10^{-5}$ to $2.39\times10^{-3}$ M with a detection limit of $7.83\times10^{-6}$ M at optimum conditions. This sensor displayed high sensitivity and long-term stability.

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References

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