title: A preliminary study for the development of reference material using oyster for determination of (137)Cs, (90)Sr and plutonium isotopes.
abstract: A new reference material for the determination of (137)Cs, (90)Sr and Pu isotopes ((238)Pu and (239,240)Pu) is being developed using dried oyster matrix by Korea Research Institute of Standards and Science (KRISS). The oyster was collected from Tongyoung harbour, southern part of Korea and the artificial radionuclides ((137)Cs, (90)Sr, (238)Pu and (239,240)Pu) were spiked into the material. After pretreatment and processing, the material was tested for homogeneity and massic activities were determined by measuring (137)Cs, (90)Sr, (238)Pu and (239,240)Pu. The reference value and extended uncertainty for those isotopes will be reported later.
authors.affiliation: Korea Research Institute of Standards and Science, Daejeon 305-340, Republic of Korea. Electronic address: s.lee@kriss.re.kr.
authors.forename: Sang-Han
authors.initials: SH
authors.lastname: Lee
authors.affiliation: Korea Research Institute of Standards and Science, Daejeon 305-340, Republic of Korea.
authors.forename: Jung-Suk
authors.initials: JS
authors.lastname: Oh
authors.affiliation: Korea Research Institute of Standards and Science, Daejeon 305-340, Republic of Korea.
authors.forename: Jong-Man
authors.initials: JM
authors.lastname: Lee
authors.affiliation: Korea Research Institute of Standards and Science, Daejeon 305-340, Republic of Korea.
authors.forename: Kyung-Bum
authors.initials: KB
authors.lastname: Lee
authors.affiliation: Korea Research Institute of Standards and Science, Daejeon 305-340, Republic of Korea.
authors.forename: Tae-Soon
authors.initials: TS
authors.lastname: Park
authors.affiliation: Korea Research Institute of Standards and Science, Daejeon 305-340, Republic of Korea.
authors.forename: Min-Kie
authors.initials: MK
authors.lastname: Lee
authors.affiliation: Korea Research Institute of Standards and Science, Daejeon 305-340, Republic of Korea; University of Science & Technology (UST), Radiation Measurement and Radiation Safety, Republic of Korea.
authors.forename: Seung-Hwan
authors.initials: SH
authors.lastname: Kim
authors.affiliation: Korea Research Institute of Standards and Science, Daejeon 305-340, Republic of Korea; Hanyang University, Department of Marine Sciences and Convergence Technology, Republic of Korea.
authors.forename: Jong-Ki
authors.initials: JK
authors.lastname: Choi
mesh_terms: D000818:Animals; D001681:Biological Assay / Q000592:standards; D005504:Food Analysis / Q000592:standards*; D005507:Food Contamination, Radioactive / Q000032:analysis*; D007554:Isotopes / Q000032:analysis* / Q000592:standards; D007564:Japan; D010125:Ostreidae / Q000737:chemistry*; D010865:Pilot Projects; D011874:Radiometry / Q000592:standards*; D012016:Reference Values; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014875:Water Pollutants, Radioactive / Q000032:analysis / Q000592:standards*
chemical_list: D007554:Isotopes; D014875:Water Pollutants, Radioactive
keywords: (137)Cs; (238)Pu; (239,240)Pu; (90)Sr; Oyster; Reference material; Seafood