Voltammetry
Voltammetry
Polarography (polarography) is based on the current electrolysis obtained material - voltage curve, the electrolyte solution of different ion content qualitative analysis and quantitative analysis of an electrochemical analyzer. Its test result is a polarogram (or polarogram). Polarogram corresponding to the half-wave potential of each substance is the basis for qualitative analysis, wave height (representing the limit diffusion current) is the basis for quantitative analysis. History Since 1924 Czech chemist Haylowski led the development of the first generation of polarography nearly 100 years ago, the first generation of polarography in China was 883 was born in the 1950s, this continuous rapid mercury dropping instrument so far Still used for education and demonstration polarographic analysis of the basic principles. A single drop of mercury electrode for the working electrode, the mercury drop ... Detailed >>
Polarography (polarography) is based on the current electrolysis obtained material - voltage curve, the electrolyte solution of different ion content qualitative analysis and quantitative analysis of an electrochemical analyzer. Its test result is a polarogram (or polarogram). Polarogram corresponding to the half-wave potential of each substance is the basis for qualitative analysis, wave height (representing the limit diffusion current) is the basis for quantitative analysis.
history
Since 1924 the Czech chemist Haylowski led the development of the first generation of the polarography has been nearly a hundred years, in China's first generation of polarography was 883 was born in the 50's, this continuous rapid drop mercury instrument still Used for education and demonstration polarographic analysis of the basic principles. The polarographic analysis method (single-sweep polarography), which uses a single drop of mercury electrode as the working electrode and finishes one scan in the last 2 seconds of the latter stage of mercury drop, calls it the modern polarographic spectrum. In the 1960s, China imitated the overseas development The successful JP-1, JP-2 successfully developed in the 1980s is a typical representative. This kind of polarography instrument has been widely used in the geology and metallurgy laboratory due to its fast analysis speed, good repeatability and adaptability to the needs of the basic laboratory. Effective production tools. However, this instrument is only adapted to that era, fleeting oscillometric wave form. Can not observe the waveform in detail, the single function can only be used for single-sweep polarography. In the following years, Litai County No Wire Factory and Jintan Analytical Instruments Factory all introduced similar instruments. However, due to the limitations of technology, all of them shied away from the cooperation of display technologies. The instrument should be additionally equipped with a function recorder as a terminal display record. Doomed the instrument is not far away. Another factory imitation JP-1, JP-2 polarography, are not shaped volume and size.
development of
In 1987, Xu Jianmin, director of Shandong Telecommunication Plant No.7, led the technicians to develop a new generation of polarography instrument. By using the familiar advantages of oscillographic display technology, using the Z80 single-chip computer as the core , The successful development of JP3-1 oscilloscope polarography, the most prominent feature of the instrument for the waveform can be frozen storage, single and multiple curves can be displayed at the same time, can print the waveform, print the standard curve, in the same instrument in the lead, access to user acceptance. Just a few years with the successful development of the first MP-1 dissolution analyzer, became the largest manufacturer of similar instruments, users across multiple industries.
use
Polarographic instrument has a wide range of uses, can be used for inorganic ion analysis can also be used for organic analysis, there are many national standard, industry standards, local standards are used polarographic analysis, especially in geology, metallurgy, soil, health and epidemic prevention, Physical and chemical testing. Although polarographic analysis uses a mercury-drop electrode as a working electrode, it is outdated today when environmental protection is high, but properly handled mercury does not affect the environment in a closed environment. Like a sphygmomanometer, though in many ways, However, many doctors are accustomed to using mercury sphygmomanometers, and mercury from such sphygmomanometers does not leak and is used in closed systems. In addition, the advantages of the polarography are obvious. The range of analysis ranges from inorganic to organic matter, from trace to constant, at a moderate price, especially for the analysis and testing of basic laboratories.
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Polarography (polarography) is based on the current electrolysis obtained material - voltage curve, the electrolyte solution of different ion content qualitative analysis and quantitative analysis of an electrochemical analyzer. Its test result is a polarogram (or polarogram). Polarogram corresponding to the half-wave potential of each substance is the basis for qualitative analysis, wave height (representing the limit diffusion current) is the basis for quantitative analysis. History Since 1924 Czech chemist Haylowski led the development of the first generation of polarography nearly 100 years ago, the first generation of polarography in China was 883 was born in the 1950s, this continuous rapid mercury dropping instrument so far Still used for education and demonstration polarographic analysis of the basic principles. A single drop of mercury electrode for the working electrode, the mercury drop ... Detailed >>
Polarography (polarography) is based on the current electrolysis obtained material - voltage curve, the electrolyte solution of different ion content qualitative analysis and quantitative analysis of an electrochemical analyzer. Its test result is a polarogram (or polarogram). Polarogram corresponding to the half-wave potential of each substance is the basis for qualitative analysis, wave height (representing the limit diffusion current) is the basis for quantitative analysis.
history
Since 1924 the Czech chemist Haylowski led the development of the first generation of the polarography has been nearly a hundred years, in China's first generation of polarography was 883 was born in the 50's, this continuous rapid drop mercury instrument still Used for education and demonstration polarographic analysis of the basic principles. The polarographic analysis method (single-sweep polarography), which uses a single drop of mercury electrode as the working electrode and finishes one scan in the last 2 seconds of the latter stage of mercury drop, calls it the modern polarographic spectrum. In the 1960s, China imitated the overseas development The successful JP-1, JP-2 successfully developed in the 1980s is a typical representative. This kind of polarography instrument has been widely used in the geology and metallurgy laboratory due to its fast analysis speed, good repeatability and adaptability to the needs of the basic laboratory. Effective production tools. However, this instrument is only adapted to that era, fleeting oscillometric wave form. Can not observe the waveform in detail, the single function can only be used for single-sweep polarography. In the following years, Litai County No Wire Factory and Jintan Analytical Instruments Factory all introduced similar instruments. However, due to the limitations of technology, all of them shied away from the cooperation of display technologies. The instrument should be additionally equipped with a function recorder as a terminal display record. Doomed the instrument is not far away. Another factory imitation JP-1, JP-2 polarography, are not shaped volume and size.
development of
In 1987, Xu Jianmin, director of Shandong Telecommunication Plant No.7, led the technicians to develop a new generation of polarography instrument. By using the familiar advantages of oscillographic display technology, using the Z80 single-chip computer as the core , The successful development of JP3-1 oscilloscope polarography, the most prominent feature of the instrument for the waveform can be frozen storage, single and multiple curves can be displayed at the same time, can print the waveform, print the standard curve, in the same instrument in the lead, access to user acceptance. Just a few years with the successful development of the first MP-1 dissolution analyzer, became the largest manufacturer of similar instruments, users across multiple industries.
use
Polarographic instrument has a wide range of uses, can be used for inorganic ion analysis can also be used for organic analysis, there are many national standard, industry standards, local standards are used polarographic analysis, especially in geology, metallurgy, soil, health and epidemic prevention, Physical and chemical testing. Although polarographic analysis uses a mercury-drop electrode as a working electrode, it is outdated today when environmental protection is high, but properly handled mercury does not affect the environment in a closed environment. Like a sphygmomanometer, though in many ways, However, many doctors are accustomed to using mercury sphygmomanometers, and mercury from such sphygmomanometers does not leak and is used in closed systems. In addition, the advantages of the polarography are obvious. The range of analysis ranges from inorganic to organic matter, from trace to constant, at a moderate price, especially for the analysis and testing of basic laboratories.
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