A method for precise and quantitative extraction and pipetting of liquids required for experiments and testing

Abstract

The invention discloses a method for accurately and quantitatively extracting and pipetting liquids required for experiments and detections. The steps are as follows: the user adjusts the coarse adjustment mechanism, and at the same time the coarse adjustment synchronization mechanism moves synchronously, so that the coarse adjustment synchronization mechanism and the pipetting The limit distance between the devices changes correspondingly with the coarse adjustment; the user adjusts the fine adjustment mechanism, and at the same time the fine adjustment synchronous mechanism moves synchronously and makes the limit distance between the coarse adjustment synchronization mechanism and the pipetting device change correspondingly with the fine adjustment; Press the control mechanism to open the liquid pipetting mechanism, and the liquid pipetting mechanism makes the liquid flow into itself. When the liquid pipetting mechanism moves to contact with the coarse adjustment synchronization mechanism, the coarse adjustment synchronization mechanism restricts the movement of the liquid transfer mechanism. At this time, the quantitative liquid extraction is completed; The user presses the liquid transfer mechanism and the liquid stored in the liquid transfer mechanism is injected into the container. When the liquid transfer mechanism moves and returns to the original state, the liquid injection is completed, and the control mechanism returns to the original state at the same time, and the quantitative liquid transfer is completed.

Description

technical field [0001] The invention relates to the technical field of experimental equipment, in particular to a pipetting method. Background technique [0002] Pipette gun is a kind of pipette, which is often used for pipetting a small amount or micro-volume of liquid in the laboratory. In the process of biological, medical and chemical experiments, a large number of pipettes need to be used repeatedly. At present, the general pipettes are Manual operation is used to absorb or unload liquid, which makes it difficult to control the amount of liquid absorbed by the pipette gun. The speed of drawing liquid is not easy to control. If it is drawn faster, it may lead to sucking back, which will not only pollute the liquid but also corrode and pollute the pipette gun, which will shorten the service life of the pipette gun, and because the upper end of the pipette gun is open structure, the reciprocating movement of the piston rod protruding from the gun body will easily bring ex...

AI Technical Summary

Problems solved by technology

[0002] Pipette gun is a kind of pipette, which is often used for pipetting a small amount or micro-volume of liquid in the laboratory. In the process of biological, medical and chemical experiments, a large number of pipettes need to be used repeatedly. At present, the general pipettes are Manual operation is used to absorb or unload liquid, which makes it difficult to control the amount of liquid absorbed by the pipette gun. It is a huge test for the user's proficiency and operating technology, resulting in low working accuracy of the pipette gun The speed of drawing liquid is not easy to control. If it is drawn faster, it may lead to sucking back, which will not only pollute the liquid but also corrode and pollute the pipette gun, which will shorten the service life of the pipette gun, and because the upper end of the pipette gun is open The structure, the reciprocating movement of the piston rod protruding from the gun body, easily brings external impurities into the gun body, causing pollution of the gun body, and even affects the sealing performance of the piston and the gun body, so its sealing effect is poor

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