China's four types of electrochemical-related instrument research and development successfully filled the gap between domestic and international

Recently, the Changchun Institute of Applied Chemistry of the Chinese Academy of Sciences has achieved a series of achievements in the research and development of electrochemical analysis instruments and associated technologies. It has independently developed a rapid biochemical oxygen demand detector, a miniature electrochemical system, and an electrochemical in-situ membrane conductivity measurement. Instrument and Electrochemical In-situ Surface Plasmon Resonance Analyzer Four kinds of electrochemical analysis instruments have high sensitivity, fast response, long life, and dynamic on-line detection. Their main performance indicators have reached the international advanced level and have filled many fields in this field. Blank at home and abroad.

Electrochemical method as a simple, rapid, accurate, high sensitivity analysis of detection and characterization methods, in scientific research and production occupy an important position. Electrochemical analysis instruments have been widely used in analytical laboratories. However, at present, domestic analytical instruments, especially high-precision analytical instruments, still rely heavily on imports. Some urgently needed special instruments are still blank. Therefore, the further development of new electrochemical sensors, detectors and functional interface devices with China's independent intellectual property rights is an urgent need for current technological production.

The research personnel of the State Key Laboratory of Electroanalytical Chemistry at Changchun Yinghua Institute proceeded from the actual needs of production and scientific research, and based on the frontier fields, in 2005 they undertook the scientific and technological development program of Jilin Provincial Department of Science and Technology. Research and development." They aim at researching and developing new electrochemical sensors, detectors and electrochemical devices that are fast, real-time, sensitive, automatic, continuous and economical, and have independent intellectual property rights. They focus on miniaturization and high performance around electrochemical instrument design methods. In order to develop a combination of electrochemical methods, the research focused on environmental monitoring, electrochemical analysis of materials, biological analysis, and other fields of application. It was developed based on biochemical oxygen demand, in situ membrane conductivity measurement, and surface plasmon resonance measurement. Electrochemical and electrochemical instrumentation equipment.

Using a new type of organic-inorganic hybridization membrane immobilization material, rapid detection of biochemical oxygen demand (BOD) was achieved through the in-situ cultivation of microorganisms, and the innovative method was shortened from the conventional BOD detection time by 5-7 days to 1 hour. A rapid BOD detector has been developed on the basis of this; a miniaturized design of an electrochemical analyzer has been realized, and a micro USB 2.0 interface electrochemical system developed and developed has been widely used in terms of potential control accuracy, data transmission speed, and other major indicators. More than previous instruments, and the volume is only as small as a finger, which is 2 to 3 orders of magnitude smaller than traditional instruments. It can be easily integrated into various analytical instruments, and can be used in combination with multiple analytical methods and electrochemical methods. Extensibility, suitable for use in the field and in various fields; Self-designed double-band electrodes with tiny gaps realize in-situ real-time monitoring of the conductivity of thin-film materials, and the development of electrochemical precursors with high time-resolving measurement capabilities Membrane conductivity measurement instrument, and can be used for dynamic measurement of membrane conductivity changes; Self-designed displacement sensor to improve the surface Based on the time resolution of plasmon resonance spectroscopy (SPR) measurement, and based on this, an electrochemical method was integrated and integrated. An electrochemical surface plasmon resonance spectrometer was developed to realize a steady-state and transient electrochemical system. Measurement of SPR signal.

The successful development of these four types of electrochemical-related instruments has enriched the research methods of basic science and can be widely applied in such fields as environmental testing, social security and scientific research. At the same time, it can meet the requirements of industrial design mass production and commercialization to market. It has wide application value and broad market prospects.