Detection of Imidacloprid by Electrochemical Sensor Based on Molecular Imprinting Technology
The gold layers were deposited on glassy carbon electrode by cyclic voltammetry.The polymerized gold layers were prepared using imidacloprid as template material and o-phenylenediamine(o-PD)as active monomer.Cyclic voltammetry(CV)and differential pulse method(DPV)were used to further study the characteristics of the imprinted sensor,and the polymerization process factors were optimized,including buffer solution pH,polymerization cycles,elution time and incubation time.Under the optimal polymerization condition,the linear region of the electrochemical sensor was 1×10-4～1×10-12 mol·L-1,the detection limit was 1×10-12 mol·L-1,the standard recovery was 104.6%～105.7%,RSD was 1.52%～1.65%.
万方数据
维普
