Macro‐ et microdosage de traces de cobalt. VIII. Dosage direct du cobalt dans l'inconel, par activation aux neutrons thermiques; limites de dosage et interférences

Abstract

The assay of traces of cobalt 60 by the method of recording spectra, using a one canal gamma spectrometer, has been completely investigated. The interferences due to iron 59 and cobalt 58 have been studied in detail. A method is described for the direct assay (without dissolution or separation) of cobalt in inconel by activation by thermal neutrons. This determination can still be effected readily on only 0,1 mg of this alloy. The method is rapid, simple and sensitive.

Nucleonics

“…Other articles specifically describe activation analysis applications used to determine cadmium in zinc (379), tantalum in niobium (434), cobalt in Inconel. (428), gold and arsenic in high purity lead (476), molybdenum in tungsten (248), gold and other trace elements in copper (477,478,1280), indium and gallium in metals (510, 538), zinc and calcium in gallium (682), hafnium in zirconium (898), lanthanum, samarium, and europium in manganese nodules (570), rare earths in thorium metal and thorium oxide (850), manganese, copper, zinc, arsenic, and antimony in thallium (SO), holmium in rare earth oxides (436), and vanadium in various metal alloys (174).…”