Dialysis device

Abstract

The invention provides a dialysis device. A fixed frame is arranged on the edge of an objective table of a magnetic stirrer, the fixed frame comprises a pillar and a cross beam, the cross beam is fixedly connected with the pillar through a screw support capable of moving along the pillar up and down, and the height of the cross beam is adjusted through adjustment of the position of the screw support on the pillar, so that positions of connecting mechanisms and dialysis bag clips are further adjusted, the position of a dialysis bag in a dialysis buffer solution is adjusted, and different experimental requirements can be met.

Description

[0001] technical field [0002] The invention relates to a biological experiment auxiliary device, in particular to a device for dialysis. Background technique [0003] In the preparation process of biomacromolecules, dialysis technology is often used to remove salts, organic solvents, and small biomolecules in samples. The dialysis bag used in the dialysis process is made of a special semi-permeable membrane folded into a corresponding bag shape according to the amount of sample solution, and the bag mouth is clamped with clips. During dialysis, the biomacromolecule sample solution is first placed in the bag, and then the mouth of the bag is clamped with clips and immersed in water or buffer solution. The large molecular weight biomacromolecules in the sample solution are trapped in the bag, while the salt and small molecules Such substances will continue to diffuse and dialyze out of the bag until the concentration on both sides of the bag reaches equilibrium. [0004]...

AI Technical Summary

Problems solved by technology

But the currently used clip only includes two clips and three parts of the shaft connecting the two clips, wherein, the other end of the clip is provided with a groove and an elastic projection that can be snap-fitted. After the bag is put on, since there is no buoyancy component, it will sink directly to the bottom of the water or buffer solution with the dialysis bag, so it is impossible to use the magnetic rotor (hereinafter referred to as the magnet) stirring method that can speed up the dialysis during dialysis

[0005] The invention patent with the application number 201220436455.4 provides a buoyancy clamp for a dialysis bag with a foam block, which can make the dialysis bag float, but will cause part of the dialysis bag filled with dialysis fluid to be exposed on the dialysis buffer with foam The buoyancy clip of the block is difficult to be sterilized by high-temperature cooking, etc., and it is not suitable for experiments with high requirements such as sterility and RNase-free

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