Nearly one hundred years have passed since Czech chemist Heyrovsk, Jaroslav led the development of the first generation polarograph in 1924. In China, the first generation polarograph was born in 883 in 1950s. This continuous and rapid mercury dropping instrument is still used to teach and demonstrate the basic principle of polarographic analysis. The polarographic analysis method (called single sweep polarography) is called modern polarography, in which a drop of mercury electrode is used as the working electrode and the scanning is completed within the last 2 seconds after the mercury drop is generated. JP- 1 developed abroad in 1960s and JP-2 developed in 1980s are typical examples. The polarograph has fast analysis speed and good repeatability, meets the needs of grass-roots laboratories and is widely equipped in geological and metallurgical laboratories. However, this instrument is only suitable for the fleeting oscillometric type of that era. Waveforms cannot be observed in detail, and a single function can only be used for single sweep polarographic analysis. In the following years, Taixian Wireless Factory and Jintan Analytical Instrument Factory all launched similar instruments, but due to technical limitations, they all avoided the cooperation of display technology, and the instruments needed to be equipped with functional recorders as terminal display records, which doomed the instruments to go far. Another manufacturer imitates JP- 1 and JP-2 polarograph, which is not in batch and scale.

From 65438 to 0987, Xu Jianmin, then the director of Shandong Telecom No.7 Factory, led technicians to develop a new generation of oscillopolarography. Using his familiarity with oscillographic display technology, at that time, JP3- 1 oscillopolarography was successfully developed with Z80 single board computer as the core. The biggest feature of this instrument is that it can freeze and store waveforms, display single curves and multiple curves at the same time, and print waveforms and standard curves. It is at the leading level among similar instruments and has been recognized by users. In just a few years, together with the MP- 1 dissolution analyzer successfully developed in advance, it became the largest manufacturer of similar instruments in China in the 1980 s and 1990 s, with users in many industries.

Polarographic analyzer is widely used in inorganic ion analysis and organic matter analysis. There are many national industry standards and local standards using polarographic analysis, especially in geology, metallurgy, soil, health and epidemic prevention, physical and chemical inspection and so on. Although the polarographic analysis uses the dropping mercury electrode as the working electrode, which is somewhat inappropriate in today's increasingly high voice of environmental protection, if handled properly, mercury will run in a closed environment and have no impact on the environment. Like sphygmomanometer, although there are many ways, many doctors are used to using mercury sphygmomanometer, and this kind of sphygmomanometer does not leak mercury, so it is used in a closed system. In addition, polarography has obvious advantages, from inorganic to organic, from trace to constant, and its price is moderate, which is especially suitable for analysis and inspection in basic laboratories.

It is a well-known fact that domestic similar instruments imitate more and innovate less, and enterprises with the ability to open up new fields are rare. Therefore, the homogeneity of similar instruments in China is serious and there is no feature. For example, all instruments with polarographic function in China use the traditional mercury dropping electrode, which was invented by Heyrovsk, Jaroslav and has a history of nearly a hundred years.

For another example, the polarograph has only one working mode, which is the working mode of voltage scanning and current detection. People don't know that there is another working mode. All polarographs have only one line scanning polarography available. Some of them brag about other functions, but they can't be used in practice because of some factors.

Moreover, individual manufacturers are highly sensitive to the labeling of instrument performance indicators, but in fact they are far from being able to do so and cannot stand serious inspection.

Through years of accumulation and development, "from quantity to quality", the company's products have changed a lot compared with similar products in China and are no longer at the same level. The company has successfully developed an electrostatic mercury electrode (utility model patent number ZL02268447.6) one step ahead of others and applied it in products, which has widened the distance from similar products (see technical introduction: electrostatic mercury electrode for details).