1results about How to "Achieving selective recognition" patented technology

The embodiment of the specification provides an aromatic molecule imprinting electrochemical sensor array, an aromatic molecule detection device, an electronic nose system and application thereof in detection of dangerous solid waste aromatic molecules. A composite film gas sensor array modified by a molecular imprinting polymer and a semiconductor material is used as a detection device, and imprinting cavities capable of selectively adsorbing aromatic molecules exist in the surface film of the device. When different target molecules reach the surface of the molecular imprinting material, the response values of the sensors composed of different materials to the target gas are different, so that the conductive properties of the semiconductor material are changed, and the resistance of the sensor is changed differently. Compared with the current aromatic molecule detection method which is complex to prepare and needs high-temperature conditions, the gas sensor array prepared by the application is small in size, low in manufacturing cost, simple and efficient in detection method and wide in detection range, is a new high-selectivity detection method and has a wide application prospect.