Full-automatic multi-connected syringe filter device

Abstract

The invention discloses a full-automatic multi-connected syringe filter device. The device comprises a plurality of connected syringe filter independent units, wherein each syringe filter independent unit comprises a vacuum box, a filter plate and a liquid filling cylinder which are arranged from bottom to top sequentially, and the filter plate and the liquid filling cylinder adopt an integrated structure and are separated independently in each unit; side edges of the vacuum boxes are connected with a vacuum pump, and a seal lock catch is arranged on the side edges of the filter plates; a liquid inflow needle and an exhaust needle are connected to the lower part of the filter plate in each unit, the tubing pore diameter of the liquid inflow needle and the exhaust needle is 0.1 mm. The full-automatic multi-connected syringe filter device can realize simultaneous, rapid and full-automatic operation, is simple and convenient to operate and has quite good application prospect.

Description

technical field [0001] The invention relates to a filter device, which belongs to the technical field of filter equipment, and more specifically relates to a fully automatic multi-connected needle filter device. Background technique [0002] Needle filters are widely used in laboratories. It does not require membrane replacement and filter cleaning, which saves complicated and time-consuming preparations. It is mainly used in sample prefiltration, clarification and particle removal, liquid and gas sterilization and filtration, etc. [0003] In liquid chromatography analysis, the particle size of the chromatographic column packing is small, and it is easy to be clogged by impurity particles. Therefore, the sample and solvent need to be pre-filtered to remove particle pollutants and protect the instrument. Ion chromatography commonly used in environmental analysis also requires that no inorganic pollutants be introduced during sample pretreatment. Needle filters are often used...

AI Technical Summary

Problems solved by technology

[0005] Although this operation is relatively simple, in the case of a large number of samples, the operation is highly repeatable, labor-intensive, and time-efficient. Each sample solution needs to be drawn separately once, put on a needle filter, and filter. The process of screwing the bottle cap on the sample bottle of the instrument is relatively cumbersome to operate, and the operation intensity is high when the sample volume is large and the sample liquid is large.

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