Neutron activation analysis for osmium and ruthenium in platinum |
| |
Authors: | G J Payton D S Martin Jr |
| |
Institution: | (1) Institute for Atomic Research and Department of Chemistry, Iowa State University, Ames, Iowa, (USA);(2) Present address: Chemistry Department, William Woods College, 65251 Fulton, Missouri |
| |
Abstract: | A sensitive procedure for the simultaneous determination of trace levels of osmium and ruthenium in platinum, by thermal neutron
activation analysis utilizing γ-ray spectrometry, was developed. The radiochemical separation method utilized perchloric acid
for a selective oxidation of osmium and ruthenium to the volatile tetroxides. The distillation of the tetroxides greatly reduced
the radiation hazard presented by the bulk of the activities in the matrix. Activities of 15-day191Os and 40-day104Ru were measured by accumulation of pulses from a 3″ diameter NaI(Tl) crystal detector. Analyses of γ-ray spectra were achieved
using digital computer techniques. The procedure provided analyses for a high purity platinum stock of 0.032±0.007 ppm Os
and 0.044±0.005 ppm Ru.
Work was performed at the Ames Laboratory of the U. S. Atomic Energy Commission, Contribution No. 3073. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|