A long time ago, a membrane filter appeared on the market. The bubble point value of this membrane with pore structure and pore size distribution is that of the traditional 0.45 micron membrane. About twice as much. Divide 0.45 by 2 and name it 0.22μm filter membrane.
The materials of microfiltration membranes are divided into two categories: organic and inorganic. Organic polymers include cellulose acetate, polypropylene, Polycarbonate, polyethersulfone, polyamide, etc. Inorganic membrane materials include ceramics and metals. In view of the separation characteristics of microporous filter membranes, the application scope of microporous filter membranes is mainly to intercept particles, bacteria and other pollutants from the gas phase and liquid phase to achieve the purpose of purification, separation and concentration.
The pore size of the microfiltration membrane is usually determined by your application or purpose of use. Mycoplasma can be removed using a 0.1μm pore filter. Routine laboratory use of most culture media, buffer solutions, biological fluids, and gases is typically accomplished with 0.22 μm pore filters. Clarification and pre-filtration of solutions and solvents are generally performed with 0.45 μm or pore size filter membranes.
This kind of filter membrane is also used in cell culture. I believe that many people who know a little bit about biology know that there are many types of mycoplasma, which are often parasitic or saprophytic. It grows in a certain way and is widely present in the environment. It is a common contamination in the cell culture process. It often comes from experimenters (mycoplasma is common in human skin, respiratory tract, reproductive tract and digestive tract), animal-derived serum and trypsin, and poor handling. The size of the device is only 0.15~0.3μm, so it can pass the general standard cell culture filtration method, 0.22μm filter membrane.
It is the manufacturer of 0.22μm filter membrane. Our products use imported raw materials and have a full set of advanced production equipment using advanced The production equipment has advanced clean rooms and independent composite slitting workshops to ensure the production quality of PTFE film; imported production testing instruments are used to test the quality of PTFE film, and it has passed SGS testing and certification, and ISI testing and certification. Interested parties can enter the store and contact us.
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