An instrument for extracting biologically active substances

Abstract

The invention provides an instrument for extracting a bioactive substance. The instrument comprises a rack, a workbench, a liquid transfer assembly and a separation assembly, wherein the liquid transfer assembly comprises a first mounting plate, a first driving unit, pipettes, piston rods and a first driving component; the first driving unit is used for driving the first mounting plate to move along the height direction of the rack; the pipettes are connected on the first mounting plate; the piston rods are inserted in the pipettes and are hermetically fit with the inner walls of the pipettes; the first driving component is used for driving the piston rods to move up and down relative to the pipettes; the separation assembly comprises a second mounting plate, a second driving unit, casings, magnetic bars and a second driving component; the second driving unit is used for driving the second mounting plate to move along the height direction of the rack; the casings are fixed on the second mounting plate; the second driving component is used for driving the magnetic bars to move up and down relative to the casings; the upper ends of the casings are provided with openings, and the lower ends are blind ends; the magnetic bars are inserted in the casings from openings at the upper ends of the casings by way of clearance fit. The instrument improves the bioactive substance extraction efficiency, and the extracted sample has higher purity.

Description

technical field [0001] The invention relates to an instrument for extracting bioactive substances. Background technique [0002] In the fields of disease control, food safety, forensic identification, genomics, etc., it is usually necessary to extract biological active substances (such as DNA) as the object of detection and research; the traditional extraction method of biological active substances usually uses boiling method, negative pressure The extraction device used in these traditional methods is relatively complex in structure and relatively low in efficiency, and it is difficult to meet the requirements of large-scale sample processing in the medical industry, and the purified sample contains a large number of unremoved substances. Affects the accuracy of structures detected and studied. [0003] With the emergence of new reagents, the industry has begun to gradually adopt the magnetic bead method for extraction. However, the current equipment for extracting biologi...

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Problems solved by technology

[0002] In the fields of disease control, food safety, forensic identification, genomics, etc., it is usually necessary to extract biological active substances (such as DNA) as the object of detection and research; the traditional extraction method of biological active substances usually uses boiling method, negative pressure The extraction device used in these traditional methods is relatively complex in structure and relatively low in efficiency, and it is difficult to meet the requirements of large-scale sample processing in the medical industry, and the purified sample contains a large number of unremoved substances. Affects the accuracy of structures detected and studied

[0003] With the emergence of new reagents, the industry has begun to gradually adopt the magnetic bead method for extraction. However, the current instruments that use the magnetic bead method to extract biologically active substances have complex structures and relatively low purity after sample processing.

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