title: Rapid preparation of pyrogen-free 2H2(18)O for human-nutrition studies.
abstract: We describe a compact ultrafiltration system for the removal of pyrogens and bacteria from water labeled with the stable isotopes of deuterium and oxygen-18. The ultrafiltration system is constructed from readily available commercial components and can achieve complete removal of pyrogens and bacteria from 1L contaminated water within 30 min. By use of our procedure, loss of the isotopically labeled water by retention in the filtration system was minimal. The purified water is suitable for both oral and intravenous administration to healthy human subjects participating in nutrition studies.
authors.affiliation: USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston.
authors.forename: W W
authors.initials: WW
authors.lastname: Wong
authors.forename: J L
authors.initials: JL
authors.lastname: Leggitt
authors.forename: L L
authors.initials: LL
authors.lastname: Clarke
authors.forename: P D
authors.initials: PD
authors.lastname: Klein
mesh_terms: D003903:Deuterium; D006801:Humans; D007553:Isotope Labeling; D010103:Oxygen Isotopes; D011749:Pyrogens; D013242:Sterilization / Q000379:methods*; D014462:Ultrafiltration / Q000295:instrumentation / Q000379:methods*; D014871:Water Microbiology; D014877:Water Pollution, Chemical / Q000517:prevention & control*
chemical_list: D010103:Oxygen Isotopes; D011749:Pyrogens; D003903:Deuterium