Dang H S, Jaiswal D D, Sunta C M, Soman S D
Health Physics Division, Bhabha Atomic Research Centre, Bombay, India.
Health Phys. 1989 Sep;57(3):393-6. doi: 10.1097/00004032-198909000-00003.
A method involving neutron activation followed by simple radiochemical separation was developed and applied to determine the concentrations of Th in blood serum and urine. The method is sufficiently sensitive to detect 0.025 ng of 232Th. The average concentration of Th found in the blood serum and urine of subjects from normal environments is 7.9 ng L-1 and 2.7 ng L-1, respectively.
