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以双酚A(Bisphenol A,BPA)为模板,氨基化硅胶为载体合成了对BPA有特异选择性的表面分子印迹聚合物(surface molecularly imprinted polymer,sMIP).然后以聚氯乙烯(PVC)为支撑基质,通过相转化过程(phase inversion process)制成BPA分子印迹聚合物膜,将聚合物膜固载到处理过的金电极表面,制成电流型双酚A电化学传感器.优化了pH值、温度等实验条件,结果表明在10～120μg/mL范围内对双酚A有良好的线性响应(R=0.9971).传感器用于实际水样的测定,结果令人满意.
A surface selective molecularly imprinted polymer (sMIP) with specific selectivity to BPA was synthesized by using Bisphenol A (BPA) as a template and aminated silica gel as a carrier. Then polyvinyl chloride (PVC) Support matrix, BPA molecularly imprinted polymer film was prepared by phase inversion process, and the polymer film was immobilized on the surface of the treated gold electrode to make current type bisphenol A electrochemical sensor. The pH value was optimized , Temperature and other experimental conditions, the results showed that in the range of 10 ~ 120μg / mL of bisphenol A has a good linear response (R = 0.9971). Sensor for the determination of the actual water samples, the results were satisfactory.