Denville Scientific Syringe Filters are used for the filtration of liquid samples that contain insoluble impurities and are made from high quality materials with very low levels of extractable. The housing material is high quality polypropylene which is chemically resistant to a wide range of solutes and solvents. Denville Scientific Syringe Filters are constructed so that the sample must pass through the membrane, not leak around it. Denville Syringe Filters are easy to use. They may be used with any lure-lock syringe and are color-coded for easy recognition. The 30mm syringe filters can filter up to 100mL of sample with a retention volume of less than 100µL. The 13mm filters can filter 5 to 10mL of sample and have a retention volume of only 28µL. Denville Scientific Syringe Filters are sterile and individually packaged in easy-open blister packs.