title: (32)P measurment of urine samples and internal dose assessment for radiation workers in life science laboratories.
abstract: (32)P measurements of urine samples and internal dose assessments were conducted for workers in life science laboratories. A procedure for sample pre-treatment was established and validation was performed to exclude interference and to detect (32)P levels accurately. The detection conditions for Cherenkov radiation were evaluated and the accuracy of Cherenkov radiation measurements validated. The analytical and measurement procedures were applied to urine samples collected from 11 workers from life sciences laboratories. The results of the measurements generally indicated very low background radiation levels, but daily urine samples from two workers were above the minimum detectable activity. The (32)P concentrations for two of the workers were 29.3  ±  10.4 Bq•d(-1) and 24.1  ±  11.8 Bq•d(-1), respectively, at intake levels of 4.12 kBq and 2.61 kBq. The effective doses for these two workers were 4.6 μSv and 2.9 μSv. Overall, the results indicate very low levels of radioactivity, except for cases related to specific working conditions.
authors.affiliation: National Radiation Emergency Medical Center, Korea Institute of Radiological and Medical Sciences, Seoul, Korea.
authors.forename: S
authors.initials: S
authors.lastname: Yoon
authors.forename: M-J
authors.initials: MJ
authors.lastname: Pak
authors.forename: S
authors.initials: S
authors.lastname: Park
authors.forename: J
authors.initials: J
authors.lastname: Yoo
authors.forename: W-H
authors.initials: WH
authors.lastname: Ha
authors.forename: H-K
authors.initials: HK
authors.lastname: Jang
authors.forename: J K
authors.initials: JK
authors.lastname: Kim
mesh_terms: D001681:Biological Assay / Q000379:methods*; D001690:Biological Science Disciplines; D001822:Body Burden; D005260:Female; D006801:Humans; D007753:Laboratories; D008297:Male; D016273:Occupational Exposure / Q000032:analysis*; D010761:Phosphorus Radioisotopes / Q000032:analysis*; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000379:methods*; D011835:Radiation Protection / Q000379:methods*; D015203:Reproducibility of Results; D056910:Republic of Korea; D012680:Sensitivity and Specificity
chemical_list: D010761:Phosphorus Radioisotopes