▎ 摘　　要

NOVELTY - Multi-channel chemical impedance sensor has a top sealing layer front, a filter interface layer front, an electrode layer reverse side, a lead layer front, and a lower sealing layer stacked from top to bottom. The upper sealing layer is an antifouling layer on the surface of the sampling channel. The plastic sealing layer is made of PET material. The filter interface layer uses cellulose filter paper as the base, and hydrophobic ink as the front and back surface layers. The inlet on one side adopts a wedge-shaped structure, which is connected to the circular sample pool through the corresponding hydrophilic drainage pipe. Plug-in electrode leads arranged in parallel and connected to corresponding leads on the opposite side through holes. The electrode layer utilizes cellulose filter paper as the base. The lower sealing layer is made of PET material as the substrate of the sensor, and the multi-way rotary switch runs through the through hole on it. USE - Multi-channel chemical impedance sensor. ADVANTAGE - The method has low production cost, good repeatability, high sensitivity and batch measurement and broad application prospects in the field of environmental hormone pollution detection, modifies the electrochemical impedance sensor to enhance detection signals, and establishes a multi-channel electrochemical impedance sensor. DETAILED DESCRIPTION - Multi-channel chemical impedance sensor has a top sealing layer front, a filter interface layer front, an electrode layer reverse side, a lead layer front, and a lower sealing layer stacked from top to bottom. The upper sealing layer is an antifouling layer on the surface of the sampling channel. The plastic sealing layer is made of PET material. The filter interface layer uses cellulose filter paper as the base, and hydrophobic ink as the front and back surface layers. The inlet on one side adopts a wedge-shaped structure, which is connected to the circular sample pool through the corresponding hydrophilic drainage pipe. Plug-in electrode leads arranged in parallel and connected to corresponding leads on the opposite side through holes. The electrode layer utilizes cellulose filter paper as the base. The front side includes a multi-channel working electrode made of screen-printed conductive ink and a pair of reference and counter electrodes. The working electrodes are spaced around the sample cell and passed through the corresponding drainage. The channel is connected to the sample cell area. Each channel utilizes conductive ink to lead out the terminal line. The reference electrode and the counter electrode are silk-printed on the sample cell area. The reference electrode lead and the counter electrode lead are connected to the reverse lead through the corresponding through hole. The lead layer adopts polyethylene terephthalate (PET) material as the base. The front is provided with a rectangular contact point corresponding to the conductive ink material of the multi-channel working electrode of the electrode layer. The multi-channel working electrode of the electrode layer is drawn out and connected through the conductive ink contact lead wire to a multi-way rotary switch, and connected to the working electrode lead wire on the opposite side of the filter interface layer. The lower sealing layer is made of PET material as the substrate of the sensor, and the multi-way rotary switch runs through the through hole on it.