Large-capacity pipettor combination for liquid phase separation in liquid phase extraction

Abstract

The invention provides a large-capacity pipettor combination for liquid phase separation in liquid phase extraction. The large-capacity pipettor combination comprises a pipette and a pipette tip, wherein the inside of the pipette is divided into two parts by a gas storage cavity partition plate; a manual imbibing shift lever penetrates through a guide groove to enter the pipette and is connected with one end of a force conveyor belt, and the other end of the force conveyor belt is connected with a piston rod after the direction of the other end of the force conveyor belt is changed by fixed pulleys; the piston rod penetrates through the gas storage cavity partition plate to be connected with a piston; a spring is compressed between the gas storage cavity partition plate and the piston; the pipette tip is a transparent hollow cylinder of which two ends are open, one end of the transparent hollow cylinder is closely connected with the open end of the pipette, the other end of the transparent hollow cylinder is used as an imbibing end, and scales are marked on the surface of the cylinder. The large-capacity pipettor combination disclosed by the invention is large in liquid absorption amount at a time, simple and convenient to operate, low in manufacturing cost and high in accuracy.

Description

technical field [0001] The invention relates to the field of biological and chemical experimental equipment, in particular to a pipetting device. Background technique [0002] Liquid phase extraction technology is a commonly used and very effective material extraction and separation method, which is widely used in the extraction and separation of substances in the fields of biology, chemistry, and materials. [0003] The pipette gun is a kind of pipette. The earliest pipette was invented by Schnitger, a scientist at the German Institute of Physiological Chemistry, in 1956. In 1958, the German company began to produce push-button micropipettes. Mass production of pipettes begins. The use of pipettes for liquid transfer in the laboratory is the most common way of pipetting. At present, the commonly used pipettes are all micro-capacity, and the common pipettes have capacities ranging from 2 μL, 20 μL, 200 μL and 1000 μL. The one-time pipetting volume of these pipette guns is ...

AI Technical Summary

Problems solved by technology

[0005] However, there is no pipette specially used in the multi-liquid phase extraction test, which can easily separate the liquid phase and has a relatively large amount of liquid at one time. Therefore, this current situation requires a pipette that can be applied to multi-liquid phase extraction. Large-capacity pipette for extraction experiments, improving the operational efficiency of substance extraction

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