FOOD SCIENCE ›› 2013, Vol. 34 ›› Issue (22): 332-335.

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Fabrication of Molecularly Imprinted Electrochemical Sensor for Determination of Nicotinamide in Beverage

1,Jian-Ping Li   

  • Received:2013-01-19 Revised:2013-10-28 Online:2013-11-25 Published:2013-12-05
  • Contact: Jian-Ping Li E-mail:likianping@263.net

Abstract:

In this paper, a sensitive sensor based on the molecularly imprinted polymer(MIP) of o-phenylenediamine was proposed, and its configuration and performance were studied. The progress of the electro polymerization is performed in a acetate buffer solution (pH = 5.7) containing 1.0mmol/L nicotinamide and 3.0mmol/L o-phenylenediamine on the surface of a glassy carbon electrode. The molecularly imprinted polymer membrane was characterized using cyclic voltammetry. The linear range is 0.01?mol/L ~ 1.1?mol/L with a detection limit of 4.5×10-9 mol/L. The sensor was sensitive, selective, easy in preparing with a low price. It was applied to determination of trace nicotinamide in beverage.

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