The Whatman PTFEmembrane filter is an excellent choice for use with aggressive solvents, liquids, and gases that can attack other membranes. It is resistant to most acids, alkalis, and solvents. PTFE membranes are particularly suitable for preparing samples for HPLC analysis. The hydrophobic nature of the membrane also has applications for air and gas sterilization. The membrane is laminated onto a non-woven polypropylene support web for improved strength and handling. It can be used at temperatures up to 150°C. PTFE membrane circle, TE35. Diameter: 47mm. Pore Size: 0.2µm. 100/Pack. Whatman #: 10411411.
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