In the laboratory, filtration operations are often performed, so what kind of filter membrane is better? PTFE sterilizing filter membrane is used in filtration solvents. a good choice.
Filtration can protect the chromatography system and column, extend the service life of the column, and increase the accuracy of data. Filtration can remove pressure fluctuations caused by particles produced by friction and baseline fluctuations caused by irregular impurities. The interference to the detection system due to the presence of bubbles can be eliminated. Therefore, a microporous membrane (Membrane) is usually used to filter the mobile phase, and a syringe filter (Filter) is used to filter the sample.
Microporous filter membranes are divided into two types: hydrophilic and hydrophobic. The material of the filter membrane depends on the nature of the filtered items and the purpose of filtration. PTFE sterilizing filter membrane has a fibrillar microporous structure, a porosity of more than 88%, and 1.4 billion micropores per square centimeter. The pore size range is 0.1μm-0.5μm. This membrane is made with a special process Coated on various fabrics and substrates, it can become a new type of filter material. The membrane has small pore size, uniform distribution, and large porosity. While maintaining air circulation, it can filter all dust particles, including small bacteria, to achieve High purification and ventilation purposes.
The currently independently developed PTFE sterilizing filter membrane series is widely used in organic solvent filtration and has both hydrophobic and hydrophilic properties. Two categories. It is widely used in medicine, food, beverage, beer, chemical and other industries, such as filtration of sterile raw materials and liquid sterilization in the pharmaceutical industry, filtration of liquor, beverages, wine, fruit wine, etc. in the food industry, and organic solvents in the chemical industry. , various alcohols, chemical reagents, etc. filtration. Interested parties can enter the store for consultation.
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