Filter plates in 96-well and 384-well formats bring speed and high throughput to sample filtration on a microliter to milliliter scale. Membrane-bottom individual sample wells or chambers have separate high-strength single or dual filter membranes to provide rapid filtration rates and to eliminate leakage or cross-talk between adjacent wells. All plates offer rigid polypropylene construction for chemical resistance and low binding and meet SBS footprint for use in robotic systems. Standard filter media include glass fiber, PVDF polypropylene, polyethylene and polyether sulfone. Sealing process guarantees no well-to-well cross talk or weeping. 96-well ultra-filtration plates with 6.24 mm well size and 19.35 sq mm filter area are good for size exclusion; to concentrate, purify and desalt proteins, peptides, oligos, DNA and RNA; and also to recover proteins, oligos and RNA from polyacrylamide gels. Harvard Apparatus, Inc. 800-272-2775 www.harvardapparatus.com