@article{oai:repo.qst.go.jp:00081749, author = {Akihiro, Uehara and Masakazu, Oikawa and Izumi, Tanaka and Hiroshi, Ishihara and Shino, Takeda and Akihiro, Uehara and Masakazu, Oikawa and Izumi, Tanaka and Hiroshi, Ishihara and Shino, Takeda}, issue = {2}, journal = {Minerals}, month = {Feb}, note = {Simple methods for the determination of elements in biological fluids have been developed. It is important to qualify the accidental incorporation during the decommissioning work at nuclear power plants. Herein, we proposed the simple preparations and determination methods of uranium concentrations in urine for microbeam scanning particle induced X-ray emission (µ-PIXE) analysis at a rat model. A droplet (1µL) of mixed solution of urine treated with a five-fold amount of concentrated nitric acid was placed on polypropylene film coated with perfluoroalkoxy alkanes (PFA) and dried at room temperature. The µ-PIXE imaging analysis revealed that successful condensation with homogeneous distribution of uranium-injected rats were quantified. The obtained results were consistent with those determined by inductively coupled plasma mass spectrometry.}, title = {Quantitative Analyses of Urinary Uranium by µ-PIXE}, volume = {11}, year = {2021} }