Sequential sensor for detecting and quantitatively analyzing multiple target objects

• Main Authors: LIN XUANHAO, LI FANGYOU
• Format: Patent
• Language: Chinese; English
• Published: 15.11.2022
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a sequential sensor for detecting and quantitatively analyzing various target objects, a preparation method of the sensor and a method for sequentially detecting and quantitatively analyzing various organic compounds, inorganic compounds or biological compounds based on the sensor, and a polymer chemical sensing porous compact film of the sensor is attached to the surface of a quartz wafer. The polymer sensing film comprises polyvinyl difluoride, polytetrafluoroethylene or other high polymer materials; the film can be further treated, or functionalized, or molecularly imprinted to facilitate selective adsorption and desorption; recording the resonant frequency change of the sensor wafer caused by the sequential desorption of the molecules, namely a sequential desorption peak; the peak retention time, height, area and half-peak width are used for identifying and quantitatively analyzing the compound to be detected; the method can be used for sequentially detecting and quantitatively ana