Fixed frame for filtering sample feeding liquid in batch

Abstract

The invention discloses a fixed frame for filtering sample feeding liquid in batch, particularly belonging to the field of laboratory instruments. The fixed frame comprises a tank body, a sample feeding bottle fixing device, a height adjusting mechanism, an injector fixing device and a press-fit liquid injection device, wherein the tank body is hollow, one end of the tank body is opened, and the sample feeding bottle fixing device, the height adjusting mechanism, the injector fixing device and the press-fit liquid injection device are sequentially arranged in the tank body from bottom to top;the sample feeding bottle fixing device comprises a sample feeding bottle fixing plate and a limiting device; the sample feeding bottle fixing plate is provided with a first accommodating slot matchedwith a sample feeding bottle; the limiting device comprises a groove, an elastic component and a limiting bead, the groove is formed in the inner side wall of the tank body, one end of the elastic component is fixed with the bottom of the groove, the other end of the elastic component is fixed with the limiting bead, the diameter of the limiting bead is matched with the slot diameter of the groove, and a limiting slot matched with the limiting bead is correspondingly formed in the side end of the sample feeding bottle fixing plate. The fixed frame has the advantages that the operation is simple, and the experimental efficiency can be greatly improved.

Description

technical field [0001] The invention belongs to the field of laboratory equipment, in particular to a fixing frame used for batch filtration of sample introduction liquid. Background technique [0002] In the process of analyzing and testing the sample solution by the high-performance liquid chromatograph, the solvent or the sample to be tested contains some impurities or insoluble substances. The material will be blocked by the frit at the inlet end of the high performance liquid chromatography column, which will eventually form a blockage, which will increase the system pressure in the high performance liquid chromatography and deform the detected chromatographic peaks. [0003] Therefore, the experimenter usually uses a syringe to extract the corresponding dose of the sample solution to be tested, and then sends the sample solution to be tested into a sample bottle for temporary storage after being filtered by a microporous membrane. However, with the generalization of t...

AI Technical Summary

Problems solved by technology

However, while the above methods are common, problems also arise

When the number of samples to be detected is too large, the above process will be too cumbersome and not conducive to the improvement of experimental efficiency

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