The Omnipore membrane is compatible with virtually all solvents, acids, and alkaline solutions. Membrane filters are available as 13 mm, 25 mm, and 47 mm cut disks in a range of pore sizes from 0.1–10 µm. The LCR membrane is specifically manufactured for HPLC solvent filtration applications. The hydrophilic PTFE membrane is optimized for low drug and protein binding with excellent throughput in typical aqueous and solvent sample preparation. High sample recoveries and low extractables provide for optimum analysis by HPLC and LC/MS/MS. Millipore Corp.800-MILLIPOREwww.millipore.com