Multiple small sample ultrafiltration without special apparatus.
D002476:Cellophane; D005374:Filtration / Q000295:instrumentation*; D008567:Membranes, Artificial; D008722:Methods; D011506:Proteins / Q000032:analysis / Q000302:isolation & purification*
D008567:Membranes, Artificial; D011506:Proteins; D002476:Cellophane