Chem. J. Chinese Universities ›› 2024, Vol. 45 ›› Issue (12): 20240322.doi: 10.7503/cjcu20240322

• Analytical Chemistry • Previous Articles     Next Articles

Preparation and Detection Performance of Norfloxacin Imprinted Electrochemical Sensor

LI Jiahui, ZHANG Jian, YAN Long, FENG Yun, ZHANG Jiali, LIU Yongxin, YANG Shaoming()   

  1. School of Material Science and Engineering,East China Jiaotong University,Nanchang 330013,China
  • Received:2024-06-28 Online:2024-12-10 Published:2024-08-07
  • Contact: YANG Shaoming E-mail:yangsm79@163.com
  • Supported by:
    the National Natural Science Foundation of China(52361014)

Abstract:

Aiming at the trace detection of norfloxacin(NOR), an electrochemical sensor with high sensitivity and selectivity for NOR was constructed by taking advantage of electrochemical analysis and the selectivity of molecularly imprinted polymers, and taking metal-organic framework(MOF) doped with highly conductive materials as a mimetic enzyme. Among them, the molecularly imprinted polymer membrane was obtained by electropolymerization with NOR as a template and o-phenylenediamine as a functional monomer. The results show that the linear range of the sensor is 1.0×10‒7—1.0×10‒5mol/L, the linear regression equation is I=-30.682-37.505lgc, the correlation coefficient is 0.987, and the detection limit reaches 3.2×10‒9 mol/L. In the detection of actual samples, the sensor shows high sensitivity(relative standard deviation is 3.0%) and high accuracy(recovery rate is 96.6%—102.3%), which shows that it has application potential in drug dosage detection and environmental monitoring.

Key words: Electrochemical sensor, Metal-organic framework, Molecular imprinting, Norfloxacin

CLC Number: 

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