title: A comparative study of129I content in environmental standard materials IAEA-375, NIST SRM 4354 and NIST SRM 4357 by Thermal Ionization Mass Spectrometry and Accelerator Mass Spectrometry.
abstract: Iodine environmental measurements have consistently been validated in the literature using the standard material IAEA-375, soil collected approximately 160 miles northeast of Chernobyl, which is currently the only soil/sediment material with a certified129I activity. IAEA-375 has not been available for purchase since approximately 2010. Two other standard materials that are available (NIST SRM 4354, freshwater lake sediment and NIST SRM 4357, ocean sediment) have certified activities for a variety of radionuclides but not for129I. This paper reports a comparison of TIMS and AMS data for all three standards.
authors.affiliation: Idaho National Laboratory, P.O. Box 1625, Idaho Falls, 83415 ID, USA. Electronic address: john.olson@inl.gov.
authors.forename: John
authors.initials: J
authors.lastname: Olson
authors.affiliation: Idaho National Laboratory, P.O. Box 1625, Idaho Falls, 83415 ID, USA. Electronic address: mary.adamic@inl.gov.
authors.forename: Mary
authors.initials: M
authors.lastname: Adamic
authors.affiliation: Idaho National Laboratory, P.O. Box 1625, Idaho Falls, 83415 ID, USA. Electronic address: darin.snyder@inl.gov.
authors.forename: Darin
authors.initials: D
authors.lastname: Snyder
authors.affiliation: Idaho National Laboratory, P.O. Box 1625, Idaho Falls, 83415 ID, USA. Electronic address: jacob.brookhart@inl.gov.
authors.forename: Jacob
authors.initials: J
authors.lastname: Brookhart
authors.affiliation: Idaho National Laboratory, P.O. Box 1625, Idaho Falls, 83415 ID, USA. Electronic address: paula.hahn@inl.gov.
authors.forename: Paula
authors.initials: P
authors.lastname: Hahn
authors.affiliation: Idaho National Laboratory, P.O. Box 1625, Idaho Falls, 83415 ID, USA. Electronic address: matthew.watrous@inl.gov.
authors.forename: Matthew
authors.initials: M
authors.lastname: Watrous
mesh_terms: D047852:Chernobyl Nuclear Accident; D005618:Fresh Water; D019015:Geologic Sediments / Q000032:analysis; D006801:Humans; D007457:Iodine Radioisotopes / Q000032:analysis* / Q000592:standards*; D013058:Mass Spectrometry / Q000379:methods* / Q000592:standards; D012015:Reference Standards; D012623:Seawater; D012990:Soil Pollutants, Radioactive / Q000032:analysis* / Q000592:standards*; D014875:Water Pollutants, Radioactive / Q000032:analysis
chemical_list: D007457:Iodine Radioisotopes; C000614963:Iodine-129; D012990:Soil Pollutants, Radioactive; D014875:Water Pollutants, Radioactive
keywords: (129)I; AMS; Iodine; Standards; TIMS