Electrochemical biosensor and detecting method thereof

Abstract

The invention discloses an electrochemical biosensor and a detecting method thereof. The sensor comprises a multi-channel chip electrode, an electrochemical detecting module and a control module, wherein the multi-channel chip electrode is used as the front end of the electrochemical biosensor and converts chemical signals into electric signals; the electrochemical detecting module comprises a signal conditioning circuit, an A / D (analog / digital) converter and an MCU (micro controller unit); the electrochemical detecting module generates a voltage and inputs the voltage into the chip electrode; the chip electrode generates the corresponding current; the current is converted into the voltage through the signal conditioning circuit; the voltage passes through the A / D converter to obtain the corresponding digital amount and then is processed by the MCU; and the control module is used for taking charge of controlling the testing process, realizing the real-time display, controlling the experiment process and receiving detection data. The invention has the advantages that the electrochemical biosensor is provided with a humanized touch screen type man-machine interaction interface and multiple detecting channels, can be independently used and can be connected with a PC (personal computer); the requirements of the multi-channel rapid detection in relativity and repeatability experiments can be met; and printing electrodes are used in place of the traditional electrodes and the electrochemical biosensor is more suitable for miniaturization.

Description

technical field [0001] The invention relates to the technical field of electrochemical analysis, in particular to a portable multi-channel dual-purpose electrochemical biosensor and a detection method thereof. Background technique [0002] The portable multi-channel dual-purpose electrochemical biosensor is a complete set of electrochemical system detection and analysis equipment, which can complete the parameter tracking and analysis of the electrochemical system in various states. So far, many manufacturers at home and abroad have developed a variety of electrical analysis devices, such as potentiostats, polarographs, electrochemical analysis test systems / workstations, etc. Since the 1990s, my country has made certain achievements in the research and development of electroanalytical instruments, which has met the needs of scientific research, teaching and analytical applications to a certain extent. However, there is still a certain gap between similar foreign products. I...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the disadvantages that the electrochemical sensor in the prior art uses serial communication, the transmission speed is relatively slow, and single-channel detection is used, which cannot meet the needs of multi-channel rapid detection in comparative and repetitive experiments. , providing a portable multi-channel dual-purpose electrochemical biosensor and detection method thereof

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