Reproducibility of radioactive sample preparation techniques |
| |
| Authors: | George K. Schweitzer James S. Eidridge |
| |
| Affiliation: | Department of Chemistry, University of Tennessee, Knoxville, Tennessee, and the Medical Division, Oak Ridge Institute of Nuclear Studies, Oak Ridge, Tennessee, unider contract with the United States Atomic Energy Commission U.S.A. |
| |
| Abstract: | The reproducibility of samples prepared for the determination of radioactivity has been investigated for a low-energy beta-emitting nuclide, a high-energy beta-emitting nuclide, and a gamma-emitting nuclide.Variables studied, in addition to the nature of the nuclide, were; the total solid concentration in solution, the nature of the sample mount, the pH value of the solution, the use of auxiliary porous media (paper), and the effect of a wetting agent.High total solid concentration had a great effect on the reproducibility of measurements made with the low energy beta-emitter, and a less pronouced effect on measurements made with the high energy beta-emitter. The effect of total solids was negligible for measurements of the gamma-emitter using a single-channel scintillation spectrometer.Copper or aluminum planchets gave best reproducibility for the beta-emitting nuclides, whereas copper planchets or steel cups were best for the gamma-emitter.The effect of the other factors studied was negligible under conditions of this investigation. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
