Grade 3MM Chr cellulose chromatography circles is a 0.34 mm paper for general chromatography and electrophoresis.Pure cellulose produced entirely from the highest quality cotton linters with no additives of any kind.Manufactured and tested specifically for chromatographic techniques. This ensures the wicking capability and uniformity of capillary action that are important in chemical separations.Also widely used in protein and nucleic acid blotting.Grade 3MM ChrThough widely used as a blotting paper, 3MM Chr is also used both in electrophoresis and for general chemistry. A medium thickness paper (0.34 mm) used extensively for general chromatography and electrophoresis. Flow rate is 130 mm/30 min.