Release Date：2022-11-12 15:23:28 Popularity：
GST Pipette Tip Automatic Plug Cartoning Machine Manufacturers know that when the tip is used with a pipette, it is mainly used in various pipetting scenarios. Because in the laboratory, the pipetting of liquid is the basic operation of all experiments, so the pipette and its matching tips are the most commonly used consumable products in the laboratory. In order to meet various pipetting needs, its types are also rich and varied. The following introduces some of the more common types of suction heads on the market.
1. Standard suction head
The most common type of tip is also the most widely used tip. It can be used for almost all pipetting operations. This is the most economical type of tip. If there is no special requirement, you can generally use standard tips. Meet most pipetting needs.
Other types of tips are also evolved from standard ordinary tips. There are generally many packaging forms for standard tips, and there are three common types on the market: bagged, boxed, and pre-packed (stacked). Generally speaking, boxed products will provide sterilized finished products, while bags and pre-packed plates will provide less sterilized products. When users use them, if they have special sterilization needs, they can directly purchase sterilized boxes. , or put unsterilized bagged tips into an empty tip box for self-sterilization before use.
Most of the tips and tip boxes on the market are made of PP polypropylene, so they can be processed under high temperature and high pressure in a sterilizer. Among them, the common packaging form of the box is 96 pieces/box, and the specification is 12×8, so as to be used with multi-channel pipettes and 96-well plates.
2. Low adsorption tip
No matter what type of tip you choose, a low residual rate is the key. If we carefully observe the use process of the tip, we will find that when discharging liquid, there is always a part that cannot be discharged and remains inside the tip. No matter what experiment is done, this will cause some error in the results. If this error is within the acceptable range, you can still choose ordinary tips for use.
For experiments with high sensitivity requirements, or precious samples or reagents that are prone to residue, you can choose low adsorption tips to improve the recovery rate, so as to obtain more accurate experimental results and higher recovery rates for precious samples. The surface of the low adsorption tip has been treated with hydrophobicity, which can reduce the surface tension liquid leaving more residue in the tip.
Although this sounds very good, in actual use, this type of suction head is still used less. Because as a kind of product that is used in a large amount in the laboratory, the cost of the tip is also a factor that users will consider. The price of this kind of specially treated tip is indeed more expensive than the standard tip. Of course, from the appearance point of view, there is no difference between the low adsorption suction head and the ordinary shampoo.
3. Filter tip
The filter tip is a kind of consumable designed to avoid cross-contamination, with a filter element on the upper end of the tip. Use the filter tip to pipette the sample so that the sample cannot enter the interior of the pipette, thereby protecting the parts of the pipette from contamination and corrosion, and more importantly, it can also ensure that there will be no cross-contamination between samples.
For example, it can effectively prevent the contamination of the pipette in scenarios where the liquid backflows into the pipette due to misoperation by the experimenter, or in molecular biology experiments where aerosol pollution is likely to occur, and at the same time in pathogen detection In related experiments, the filter tip can better protect the safety of the experimenter.
Of course, in fact, for filter tips, most ordinary filter elements cannot provide a real barrier function, and can only relatively slow down the process of liquid entering the pipette. Only some high-end tips can provide a real barrier function, to achieve complete isolation. Filter tips are usually pre-sterilized and do not contain DNase/RNase, and are often used in experiments such as molecular biology, cytology, and virology.
4. Flared suction head
The difference between this type of tip and ordinary tips is that its lower end has a larger opening, which is easier to discharge during liquid discharge and provides less mechanical shear. When pipetting viscous substances, conventional tips should have a smaller opening at the lower end, which is not easy to absorb and discharge, and will also cause higher residues. The flared design is more convenient for the processing of such samples. In the face of genomic DNA and fragile cell samples, the opening is too small to easily cause damage to the sample during operation, cell rupture, etc. The opening of the flared tip is about 70% larger than the standard tip, which is the best choice for pipetting fragile samples. Excellent solution.
5. Gel loading tip
The difference from ordinary suction heads is that the bottom end provides a very slender extension. When used for gel loading during electrophoresis, this type of tip can go deep into the sample well of the gel, because the volume of this type of hole is very small, it is difficult for conventional tips to load samples, or it is easy Spilled, gel loading tips are very suitable for such small-volume containers.
6. Extended suction head
Compared with the conventional standard suction head, the length is simply lengthened. Although different brands of tips on the market may have different sizes including length, the extended tip is still much longer than the regular tip. If the container that needs to absorb the solution is very deep, such as the common 15ml centrifuge tube on the market, at this time, the conventional tip cannot absorb the liquid, and the extended tip can complete this operation.
7. Automatic suction head
Unlike the above-mentioned tips, automatic tips are mainly used with a workstation. Compared with traditional manual pipettes, the automated workstation is actually a high-throughput option. It cooperates with various other automated equipment, such as automated cryopreservation tube systems, nucleic acid extractors, etc., to achieve high-throughput experiments. Automation, improving efficiency while liberating manpower.
