Determination of nickel,gold and silver in gallium arsenide by radioactivation analysis based on the quantitative isotope dilution principle |
| |
Authors: | K Kudo N Hishinuma |
| |
Institution: | (1) Electrical Communication Laboratory, Nippon Telegraph and Telephone Public Corporation, Tokai, Ibaraki, Japan |
| |
Abstract: | A method of radioactivation analysis has been developed for the determination of Ni, Au and Ag impurities in gallium arsenide.
The separation and substoichiometric extraction of these elements were studied and analytical procedures are suggested for
their determination. All components are separated by suitable procedures and determined by substoichiometric methods. Ni is
extracted as diethyldithiocarbamate into toluene, Au as a complex of rhodamine-B in chloroform, and Ag as dithizonate in carbon
tetrachloride. The contents of Ni, Au and Ag in a gallium arsenide crystal with a carrier concentration of 1.8·1016/cm3 were 0.05–0.08, 0.006–0.008 and 0.002–0.005 ppm, respectively. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|