An electrophoresis tube teaching aid for inorganic and analysis

Abstract

The invention discloses an electrodeless electrophoresis pipe teaching aid used for analysis. The electrodeless electrophoresis pipe teaching aid comprises a base, wherein a vertical stand column is arranged on the base, a double-buret clamp and a transverse rod are sequentially fixed to the stand column from bottom to top, a U-shaped electrophoresis pipe is clamped by the double-buret clamp, and a colored silica gel stick used for representing sol is contained in the electrophoresis pipe. A battery holder is fixed to the transverse rod, wherein a linear motor and a power supply supplying power to the linear motor are arranged in the battery holder, the output end of the linear motor is connected with a thin wire, the other end of the thin wire is fixedly connected with the colored silica gel stick, and two wires which extend into two openings of the U-shaped electrophoresis pipe respectively and are used for representing electrodes are arranged on the battery holder. The colored silica gel stick is used for representing sol particles, the sol particles are driven by the linear motor to move upwards, the experiment process is truly and rapidly represented, the electrodeless electrophoresis pipe teaching aid is simple in structure, easy and convenient to use and maintain and closer to the true experiment condition, and the phenomena in the whole experiment process can be visually and accurately presented to students within the short teaching time.

Description

technical field [0001] The invention relates to a teaching tool, in particular to an inorganic and analytical electrophoresis tube teaching tool. Background technique [0002] Sol is a multi-phase system, and the size of the dispersed colloidal particles is between 1nm and 1μm. Most checker molecules are aggregates of molecules or atoms, which are charged by selectively adsorbing ions in the medium. The opposite to the adsorbed ions in the medium are called counter ions, and some of them are tightly adsorbed on the calibration surface due to the electrostatic attraction to the adsorbed ions, forming a tight layer. Thus, the check, adsorbed ions and compact layers constitute colloidal particles. And the antiparticles distributed in the medium due to thermal diffusion form the diffusion layer. The junction of the compact layer and the diffusion layer is called the slip surface, and the potential difference between the slip surface and the inside of the medium is called the ...

AI Technical Summary

Problems solved by technology

[0003] Because the experiment period is long and the experiment process is slow, it is impossible to quickly reproduce the experiment process directly in the teaching process

In order to enable students to have a more intuitive understanding of the experimental process, teachers often use pictures to illustrate the experimental process, but this method still has its limitations

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