Anhydrous and oxygen-free solid extraction eluter

Abstract

The invention discloses an anhydrous oxygen-free solid extraction elution device and belongs to the field of chemical instruments and equipment. The anhydrous oxygen-free solid extraction elution device consists of a screw cap, a cylinder and a V-shaped funnel, and is characterized in that spiral wires are respectively arranged at the upper and lower ends of the cylinder; the screw cap is fixed at the upper end of the cylinder through the spiral wires; a convex edge is arranged on a wall at the upper end of the V-shaped funnel; a groove is formed in a lower wall of the convex edge; the upper end of a spiral loop is fixed on a glass cylinder through the spiral wires; the lower end of the spiral loop is connected with the V-shaped funnel through the convex edge of the V-shaped funnel; the V-shaped funnel is connected with the cylinder into a whole through a groove; a piston is arranged at the lower end of the V-shaped funnel. Moreover, a glass sieve plate (or a Teflon sieve plate) is laid on the groove of the V-shaped funnel, annular sealing rubber pads are respectively arranged above and below the glass sieve plate (or a Teflon sieve plate), and a filtering body is positioned between the annular rubber pads and the glass sieve plate (or a Teflon sieve plate). The problems that filter paper is difficulty attached to the funnel tightly so as to easily leak materials during suction filtration, the filtered matters are easy to crystallize and difficult to take out, the interior of a Buchner funnel is difficultly cleaned and anhydrous oxygen-free operation in the whole process cannot be realized and the like in a common suction filtration device are solved. The anhydrous oxygen-free solid extraction elution device is particularly suitable for anhydrous oxygen-free operation or experiments with special requirements on the filter paper.

Description

technical field [0001] The invention relates to a chemical instrument, in particular to an anhydrous and oxygen-free solid extraction eluter, which belongs to the field of chemical instruments and equipment. Background technique [0002] Various solid extractions or adsorptions are often used in chemical research, but there is no special elution device for eluting these extracts, especially when anhydrous and oxygen-free operation is required or special requirements are placed on filter paper, the traditional Brinell Funnel combinations are hard to hit. For example, when preparing samples by thin-layer chromatography, the samples are often expensive and have unknown stability, and the amount that needs to be eluted is often very small. Suction filtration with conventional instruments is prone to silica gel diafiltration and affects NMR results, and there are usually the following deficiencies: Suction filtration When the filter paper is difficult to fit closely with the fun...

AI Technical Summary

Problems solved by technology

[0002] Various solid extractions or adsorptions are often used in chemical research, but there is no special elution device for eluting these extracts, especially when anhydrous and anaerobic operation is required or special requirements are placed on filter paper, the traditional Brinell Funnel mix is ​​hard to hit

For example, when preparing samples by thin-layer chromatography, the samples are often expensive and have unknown stability, and the amount that needs to be eluted is often very small. Suction filtration with conventional instruments is prone to silica gel diafiltration and affects NMR results, and usually has the following deficiencies: Suction filtration When the filter paper is difficult to fit closely with the funnel, it is easy to leak material, the filtrate is easy to crystallize, it is difficult to take out, the inside of the Buchner funnel is not easy to clean, and it is impossible to operate without water and oxygen throughout the process, etc.

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