论文部分内容阅读
首先制备叶蝉散分子印迹聚合物,再将该聚合物自组装至玻碳电极上,将构建的分子印迹电化学传感器用于叶蝉散农药的检测。实验表明,采用差分脉冲伏安法以铁氰化钾、氯化钾的混合液作为底液时,叶蝉散分子印迹传感器对叶蝉散在0~3.3×10-4 mol/L浓度范围内,有良好的线性关系,并且该电极有良好的灵敏度和识别性。利用该传感器测定水果中的农药含量。该分子印迹电化学传感器的线性关系为:In-I0(nA)=8.128 7C-9.327 4,相关系数R2=0.999 6,检出限为1.05×10-8 g/L。
First, the leaf-leaved molecular imprinted polymer was prepared, and then the polymer was self-assembled to the glassy carbon electrode. The molecularly imprinted electrochemical sensor was used to detect leaf-spattered pesticide. Experiments show that the differential pulse voltammetry using potassium ferricyanide and potassium chloride as the base liquid, leaf cicada scattered molecular imprinted sensor leafhopper scattered in the range of 0 ~ 3.3 × 10-4 mol / L, There is a good linear relationship, and the electrode has good sensitivity and recognition. The sensor measures the amount of pesticide in fruit. The linearity of the molecularly imprinted electrochemical sensor was: In-I0 (nA) = 8.128 7C-9.327 4, correlation coefficient R2 = 0.999 6, and the detection limit was 1.05 × 10-8 g / L.