A device for purifying and automatically feeding a sample of chromatography at middle-low pressure

The device for preparing chromatographic samples under medium and low pressure and for automatic sample injection utilizes a vacuum evaporation heater and injection rod to compress and adsorb the packing layer, thus solving the problems of slow purification speed of chemical reaction mixtures and health threats posed by silica gel micropowder, and achieving highly efficient sample purification and separation.

CN224594586UActive Publication Date: 2026-08-04SHANGHAI ZUBO SCI INSTR LTD
1 Cites 0 Cited by

Patent Information

Application Number
CN202520655303.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Priority Date
2024-04-09
Filing Date
2025-04-09
Publication Date
2026-08-04
Estimated Expiration
2035-04-09

AI Technical Summary

Technical Problem

In existing technologies, the purification rate of chemical reaction mixtures is slow, and silica gel micropowder poses a potential health threat during the operation.

Method used

The device for preparing chromatographic samples and automating sample loading using medium- and low-pressure methods includes an extraction column, a vacuum evaporation heater, and an injection rod. The vacuum evaporation heater enables efficient evaporation, and the injection rod is used to compress and adsorb the packing material layer, thus achieving automated sample purification and loading.

Benefits of technology

It improves purification speed and chromatographic separation efficiency, reduces the consumption of toxic solvents and the health risks to operators, and achieves efficient sample transfer and separation.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The utility model discloses a kind of low pressure preparation chromatogram sample purification and automatic feeding device, it is related to the field of pharmaceutical synthesis experiment, and it includes: the upper end of extraction column pipe is set open, lower end is connected and is provided with lower interface, and extraction column pipe is filled with adsorption extraction filler layer above lower interface in;Adsorption extraction filler layer is flexible mechanical compressible material with communicating type porous;Vacuum evaporation heater is sleeved in the outside of extraction column pipe, for the target reaction mixture is removed by vacuum heating evaporation;Liquid channel is connected and is provided with in sample rod along the axial direction, and the outer periphery of one end of sample rod is circumferentially sleeved with sealing assembly;The one end of sample rod setting sealing assembly is pushed into extraction column pipe from upper end opening, for compressing adsorption extraction filler layer;The inner wall of extraction column pipe is tightly attached to the outer wall of sealing assembly, for sealing extraction column pipe. The scheme not only does not need to operate the silica gel micro powder of health threat, also greatly speeds up the purification speed of chemical reaction mixture.
Need to check novelty before this filing date? Find Prior Art