Polarography is an electrochemical analytical instrument for qualitative analysis and quantitative analysis of different ion contents in an electrolyte solution based on a current-voltage curve obtained during electrolysis of a substance. Its test result is a polarographic curve (or polarographic map). The half-wave potential corresponding to each substance on the polarographic map is the basis for qualitative analysis, and the wave height (representing the ultimate diffusion current) is the basis for quantitative analysis.
use
Polarographs have a wide range of applications, can be used for inorganic ion analysis, and can also be used for the analysis of organic matter. There are many national standards, industry standards, and local standards for polarographic analysis, especially in geology, metallurgy, soil, sanitation and epidemic prevention. Physical and chemical testing. Although the polarographic analysis uses a mercury drop electrode as the working electrode, it is somewhat out of date in today's high environmental protection, but when handled properly, mercury operates in a closed environment and has no effect on the environment, just like a sphygmomanometer, although in many ways, However, many doctors are accustomed to using mercury sphygmomanometers, and the mercury in this sphygmomanometer is not leaked and is used in closed systems. In addition, the polar spectrometer has obvious advantages, ranging from inorganic materials to organic matter, from trace to constant, and moderately priced, especially for the analytical testing of basic laboratories.
development of
In 1987, Xu Jianmin, the director of Shandong Telecom 7 Factory, led the technicians to develop a new generation of polarographs. Using the advantages of familiarity with oscilloscope display technology, the Z80 single-board machine was used as the core under the condition that the PC was not popular at the time. The JP3-1 oscillograph is successfully developed. The biggest feature of the instrument is that the waveform can be frozen and stored. It can display single and multiple curves at the same time. It can print waveforms and print standard curves. It is the leading level in similar instruments and has been recognized by users. The MP-1 dissolution analyzer, which was successfully developed in the early stage, has become the largest manufacturer of similar instruments in its own, and its users are spread across many industries.
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