How to choose pipette tips?
1. Material
At present, the tips on the market are basically made of polypropylene plastic (colorless and transparent plastic with high chemical inertness and wide temperature range). High-quality tips are generally made of natural polypropylene, while low-cost tips are likely to be recycled polypropylene plastic. Yonyue biological pipette tips have high transparency, resistance to organic solvents, and a wide range of temperature resistance: -80℃~121℃, no deformation after high temperature and high pressure, and high-quality raw materials bring high performance.
2. Additives
In addition, most pipette tips will also add a small amount of additives during the manufacturing process. Common ones are: (1) color-developing materials for blue tips and yellow tips; (2) additives to help pipette tips in forming After that, it is quickly separated from the mold. (3) Additives for treating the surface of the low adsorption gun head.
The more additives, the higher the probability of undesired chemical reactions during the pipetting process, but without additives, the production process requirements are relatively high, and few manufacturers can achieve.
Yonyue Bio is supported by the industry's advanced mold design technology. It adopts ultra-fine grinding molding technology, which can be demolded without mold release agent, and the inner wall is smooth, which minimizes the liquid residue.
3. Biological contamination
More and more users will require that the pipette tips are free of RNase, DNase, pyrogen and ATP contamination, and endotoxin-free. However, high-temperature sterilized tips cannot completely guarantee no biological contamination. To ensure no biological contamination, steps such as gamma ray treatment are also required. Therefore, it is almost impossible for users to process ordinary tips into non-biological contamination tips, and the purchased non-biological pollution-free boxed tips should provide corresponding certificates to indicate the test data of the corresponding items. Yonyue Bio has a 100,000-level dust-free workshop to ensure that the products are free of pyrogen, DNase, RNase and endotoxin.
