Automatic pressure filter device

Abstract

The invention aims at solving the technical problems of high labor intensity and long term existing during filtration of sample solution and provides an automatic pressure filter device which can simultaneously filter many kinds of sample solution, is time-saving and labor-saving during filtration and is high-efficiency. The technical scheme is that the automatic pressure filter device comprises syringes which are prefilled with solution to be filtered, filters which are abutted with the syringes, a syringe positioning slot plate, a receiving bottle seat plate and an automatic pressurizing device. The automatic pressurizing device is placed above the syringe positioning slot plate and is provided with a plurality of pressure bars which respectively pressurize the syringes to enable the solution to be filtered in the syringes to pass through the filters, so as to realize the automatic pressure filtration of the sample solution. The automatic pressure filter device provided by the invention has the advantages of simple structure, convenience and high safety in operation, automatic pressurization, batch filtration, time saving, labor saving and high working efficiency.

Description

technical field [0001] The invention relates to a filtering device, in particular to an automatic pressure filtering device. Background technique [0002] In the analysis of liquid chromatography, the particle size of the chromatographic column packing is small, and it is easy to be blocked by impurity particles. Therefore, the sample and solvent need to be pre-filtered to remove particle impurities, protect the instrument, and prolong the service life of the instrument. Commonly used ion chromatography also requires that no inorganic pollutants be introduced during sample pretreatment. Traditional needle filters are often used to filter sample solutions and are an important step in sample pretreatment. The traditional filtration method generally uses a 2-5 mL syringe, connected with a 0.20 μm or 0.45 μm filter, pours the sample solution into the syringe tube, pressurizes the liquid by hand to pass through the filter membrane, and enters the sample bottle to complete a Sam...

AI Technical Summary

Problems solved by technology

The laboratory conducts samples such as liquid chromatography analysis and ion chromatography analysis. The sample pretreatment must carry out the sample solution filtration operation. The traditional method for large-scale sample solution filtration is not only time-consuming and laborious, but also inefficient. The turbid sample solution is being filtered. It is more difficult to operate, and it is easy to overturn the sample bottle, and the long-term operation will also cause serious damage to the body of the experimenter.

[0003] The patented "multi-channel needle filter device" solves some of the above problems, and performs each small step of filtration in batches, which shortens the time for batch filtration of sample solutions and greatly improves work efficiency; but this device still has major problems, such as Filtration of turbid sample solution still requires the experimenter to press for a long time, which does not achieve the purpose of freeing hands

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