Filtration plates are used in their simplest form to remove particulate matter from liquid. Either the particulate matter or the filtrate is needed for further study. Porvair Sciences has a range of filter plates to suit most filtration applications. The company has optimized filter plates for applications including cell harvesting, DNA separations, binding studies, Plasmid isolation, general filtration and sample clean up. Porvair's new 384-well microplates come with a choice of glass fiber, nylon, PVDF or polyethylene filtration materials and well volumes of 140ul.