China's 4 types of electrochemical-related instrument research and development successfully filled the gaps at home and abroad
Recently, the Changchun Institute of Applied Chemistry of the Chinese Academy of Sciences has made a series of achievements in the research and development of electrochemical analysis instruments and combined technologies. The self-developed rapid biochemical oxygen demand detector, micro-electrochemical system, and electrochemical in-situ membrane conductivity measurement Instrument and electrochemical in-situ surface plasmon resonance analyzer, four types of electrochemical analysis instruments, with high sensitivity, fast response, long life, and dynamic online detection. Its main performance indicators have reached the international advanced level and filled many fields in this field. Blank at home and abroad.
Electrochemical method, as a method of analysis, detection and characterization with advantages of simplicity, speed, accuracy and high sensitivity, occupies a relatively important position in scientific research and production. Electrochemical analytical instruments have been widely used in analytical laboratories. However, at present, a large share of domestic analytical instruments, especially high-precision analytical instruments, still rely on imports. Some urgently needed special instruments are still blank. Therefore, further development of new electrochemical sensors, detectors, and functional interface instruments with independent intellectual property rights in China is an urgent need for current scientific and technological production.
Based on the actual needs of production and scientific research, the researchers of the State Key Laboratory of Electroanalytical Chemistry of Changchun Yinghua Institute base on the forefront of fields and undertook the scientific and technological development plan project of the Jilin Provincial Science and Technology Department in 2005 Research and Development ". They aim at research and development of rapid real-time, sensitive, automatic continuous detection and economical application of new electrochemical sensors, detectors and electrochemical combination equipment with independent intellectual property rights, focusing on the design methods of electrochemical instruments, highlighting miniaturization and high performance It has carried out research on the combined use of electrochemical methods, focusing on the application fields of environmental monitoring, electrochemical analysis of materials, biological analysis, etc., and has developed four for biochemical oxygen demand, in-situ membrane conductivity measurement, and surface plasmon resonance measurement. A variety of electrochemistry and electrochemistry combined equipment.
Using a new type of organic-inorganic hybrid membrane immobilization material, through the method of microbial on-site cultivation, the rapid detection of biochemical oxygen demand (BOD) is achieved. This innovative method is shortened from the traditional BOD detection time of 5-7 days to 1 hour The rapid BOD detector was developed based on this; the miniaturized design of the electrochemical analysis instrument was realized. The developed micro-USB2.0 interface electrochemical system greatly improved the main indicators such as potential control accuracy and data transmission speed. It surpasses the previous instruments, and the volume is only the size of a finger, which is 2 to 3 orders of magnitude smaller than the traditional instruments. It can be easily integrated into various analytical instruments, and realize the combination of multiple analytical methods and electrochemical methods. Scalable, suitable for use in the field and in various fields; using self-designed double-strip electrodes with micro gaps, real-time in-situ monitoring of the conductivity of thin film materials, and the development of electrochemical instruments with high time resolution measurement capabilities Position membrane conductivity measuring instrument, and can be used for dynamic measurement of membrane conductivity change; the use of self-designed displacement sensor improves the surface plasma Resonance spectroscopy (SPR) measurement time resolution, and on this basis, the electrochemical method is integrated and used, and the electrochemical combined surface plasmon resonance spectrometer is developed to realize the SPR signal of the steady state and transient electrochemical system Measurement.
The successful development of these four types of electrochemical-related instruments has enriched basic scientific research methods and can be widely used in environmental testing, social safety, and scientific research. At the same time, it can meet the requirements of industrial design mass production and commercialization to the market. It has wide application value and broad market prospects.
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