DETERMINATION OF NICKEL IN COPPER BY PROTON ACTIVATION ANALYSIS

A procedure for the determination of nickel in copper by proton activation analysis has been developed. The57Ni activity induced was separated from the zinc and copper activity formed out of the copper matrix by anion exchange. Pure nickel was used as a standard. This method yields a reproducibility of 4% at the μg·g−1 level. The detection limit is 0.03 μg·g−1.