Aktivierungsanalytische Bestimmung von Nickel in Ionenaustauschern |
| |
Authors: | M Geisler H Schelhorn |
| |
Institution: | (1) Zentralinstitut für Isotopen- und Strahlenforschung Leipzig, DDR-705 Leipzig, (DDR) |
| |
Abstract: | A method for the determination of nickel in ion exchange resins has been elaborated. It is based on the58Ni(n, p)58Co reaction. Samples of 500 mg are irradiated for 90 h in a fission neutron flux of 1013 n·cm−2·s−1. After decomposing by HNO3/HClO4 mixture the radiochemical separation is carried out by extraction of the Co-DDTC-complex in chloroform. Measuring by a 23
cm3 Ge(Li) detector for 15 h provides a detection limit of 10 ppb. Radiochemical yield is determined by57Co as radioactive indicator. Limitations by60Co are reduced by Cd-screened activation and by anticoincidence measuring technique.
|
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|