Multi-channel automatic purification device

Abstract

The invention discloses a multi-channel automatic purification device which comprises a piston driving device and a plurality of purification columns, each purification column comprises a piston assembly, a purification cylinder and a purification layer; the piston assembly comprises a first end and a second end which are oppositely arranged, the first end is arranged in the purification cylinder,and the second end extends out of the purification cylinder and is connected with the piston driving device; the piston driving device is used for driving the piston assembly to do reciprocating motion in the purification cylinder so as to suck the sample extracting solution into or discharge the sample extracting solution out of the purification cylinder through the liquid inlet / outlet of the purification cylinder; the purification layer is arranged in the purification cylinder, located between the first end of the piston assembly and the liquid inlet and outlet of the purification cylinderand used for purifying the sample extracting solution passing through the purification layer. According to the multi-channel automatic purification device, a centrifugal machine is not needed for separating the sample extracting solution from the purification filler, the device is simple, and the production cost is low. And meanwhile, multi-channel efficient purification can be achieved, and the purification efficiency is greatly improved.

Description

technical field [0001] The application relates to a multi-channel automatic purification device, which belongs to the technical field of dispersive solid-phase extraction purification pretreatment. Background technique [0002] With the improvement of living standards, people have higher and higher requirements for food quality, and there are more and more detections of Chinese medicine residues in food. However, there are many types of samples and complex matrices in the food testing process, which brings great challenges to the efficient and rapid detection of food. Reasonable and high-speed pre-treatment technology is the key to solving the problem, and dispersive solid-phase extraction purification technology is the key to solving the problem. A rapid sample preparation technique for food testing. [0003] In the prior art, during the purification of dispersive solid phase extraction, it is necessary to use a centrifuge to realize the solid-liquid separation of the extr...

AI Technical Summary

Problems solved by technology

[0004] The purpose of this application is to provide a multi-channel automatic purification device to solve the technical problems of existing purification devices that are difficult to match with high-throughput devices and have complex structures and high production costs

Images