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Bisphenol A (BPA) is a typical endocrine disruptor , has a three-induced effect and endocrine disruptors . Bodies of water around the world have detected bisphenol A , environmental behavior and risk evaluation has become a research focus in the field of the environment , but due to the complexity of bisphenol A in environmental samples , looking fast , highly sensitive and the site of the highly selective detection methods become a key issue. In this paper, through the preparation of molecular imprinting technology -specific identification of trace bisphenol A electrochemical sensor . Bisphenol A template molecule , aminopropyl triethoxysilane (APTES) as the functional monomer , tetraethyl orthosilicate (TEOS) as a crosslinking agent, using a self-assembly method , respectively, in an indium tin oxide (ITO ) modified gold electrode surface synthesis of bisphenol A molecular imprinted membrane electrode and carbon nanotube ionic liquid , marked the MIPs-ITO and MIPs - Au , the preparation of highly sensitive and highly selective response waters bisphenol A molecular imprinted electrochemical sensor . Electrode surface morphology and electrochemical properties were characterized using atomic force microscopy and infrared spectroscopy . Molecularly imprinted sensor by the cyclic voltammetry of a response characteristic of bisphenol A , the results show that the preparation of bisphenol A electrochemical sensor has a good sensitivity and selectivity . The MIPs-ITO electrodes in response to the linear range of concentration of bisphenol A is 0.5 ~ 50μgL-1, the detection limit the is 0.094μgL - 1 , a bisphenol A structure resemble phenol , p-aminophenol and p-nitrophenol pair of electrodes results . small. The MIPs-Au electrode response linear range 0.5 ~ 70μgL of bisphenol A the detection limit 0.072μg L -1 , MIPs - Au electrode interfering substances on phenol , p-aminophenol , p-nitrophenol and tert phenol response current selection 23.37,11.09,24.39 , and 26.99 , respectively , showing the electrode has a good selectivity to the field detection of bisphenol A in water standards . In this study, the use of self-assembly prepared bisphenol A molecularly imprinted polymers , carbon nanotubes and ionic liquid modified electrode surface , and the development of new methods for a detection of bisphenol A in water . This study the high sensitivity of the waters of bisphenol A selective scene detection provides important technical support to achieve fast and accurate environmental emergencies early warning , environmental risk assessment is of great significance .
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