What is a pipette? What is the role of the pipette tip?
What is a pipette?
Pipette, also known as pipette gun, is a measuring tool used to remove liquid from the original container to another container within a certain range. It is widely used in biology, chemistry and other fields. Pipettes are widely used in clinical laboratories because of their simple structure and convenience.
How does the pipette work?
The commonly used micro pipette design is based on Hooke's law: that is, in a certain limit, the spring stretch of the long force is proportional to the spring, that is, the volume of liquid in the pipette is proportional to the spring spring in the pipette.
There are two physical principles of micropipette sampling: the use of air pad and the use of air pad piston moving sample. These two kinds of micropipettes with different principles have different specific applications.
Classification of pipettes
According to the working principle can be divided into air displacement pipette and forward displacement pipette;
According to the number of suction heads that can be installed at the same time, it can be divided into single channel pipette and multi-channel pipette;
According to whether the scale can be adjusted can be divided into fixed pipette and adjustable pipette;
According to the adjustment scale can be divided into manual pipette and electric pipette;
According to the special purpose, it can be divided into full disinfection pipette, large capacity pipette, bottle mouth pipette, continuous injection pipette, etc.
Precautions for using pipettes
In the process of adjusting the pipette, turn the knob not too fast, nor beyond its maximum or minimum range, otherwise it is easy to lead to inaccurate quantity, and easy to lock the internal mechanical device and damage the pipette.
In the process of assembling the suction head, repeatedly hitting the suction head with the pipette will not be screwed tightly. Long-term operation will lead to loose parts in the pipette, and even lead to the sticking of the adjusting scale knob.
When there is liquid in the pipette suction head, do not place the pipette horizontally or invert to avoid liquid backflow and corrosion of the piston spring.
When sterilizing the pipette, first check whether the pipette used is suitable for treatment after sterilization.
The role of pipette tips
Because the pipette tip is a disposable pipette filter tip, the biggest role in the use process is to prevent cross-contamination. Unlike other filter types that contain additives that can inhibit enzymatic reactions, the filtered pipetting of biological tissues The tips are made of pure virgin sintered polyethylene.
The filter tip's filter is machine loaded to ensure that the tip is completely unaffected during manufacturing and packaging. Pipette tips should be certified free of RNase, DNase, DNA and pyrogen contamination. Additionally, all filters are radiation pre-sterilized after packaging for enhanced protection of biological samples.
The use of filter tips can be used to prevent the pipette from being damaged by the sample and greatly improve the life of the pipette.
Supplier of pipette tips:
GENETURE is a group company focus on the field of clinical diagnosis and life sciences,provide one stop solution of Nucleic Acid Extraction and Analysis,including solution of COVID-19. Our main products including Nucleic acid extraction kit, Nucleic acid extractor, Magnetic beads, PCR kit, PCR system, etc.
Geneture provides one stop solution of Nucleic Acid Extraction and Analysis, including different kinds of pipette tips. Geneture All pipette tips are tested and certified and do not contain any detectable RNase, DNase, DNA, or pyrogen. If you have any requirements or questions about Geneture pipette tips, please feel free to contact us.