In order to prepare a fast, efficient electrochemical detection of molecular imprinting EE2 sensors, platinum nanoparticles were synthesized by hydrothermal method, and then having a large specific surface area, high stability and high catalytic activity carboxylated high purity single wall carbon nanotubes mixed ultrasonic dispersion to obtain a COOH-SWCNTs-PtNPs composite materials, sol-gel method and then obtaining a molecularly imprinted polymer ethinylestradiol, a method of dispensing various materials supported on the glassy carbon electrode clean , thus preparing a novel molecularly imprinted electrochemical sensor ethinylestradiol. Scanning electron microscopy (SEM) and impedance (EIS) respectively modified electrode structure and electrochemical characterization, differential pulse stripping voltammetry (DPSV) and cyclic voltammetry (CV) was studied at different electrode EE2 electrochemical behavior influencing parameters, investigated and optimized substrate concentration, pH value, accumulation time, stirring speed. The results show that the oxidation peak current EE2 its concentration under optimal experimental conditions of 2.0 × 10 -7 ~ 2.0 × 10 -5 mol / good linear relationship, experiment measured between the lowest detection limit of L 2.5 × 10 -8 mol / L (S / N = 3). EE2 sensor for detecting the milk and water remaining in samples
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