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Radiochemistry in Nuclear Power Reactors
E.4DETERMINATION OF NICKEL-63
E.4.1Principle of Analyses
Nickel-63 is separated from fission and corrosion products by anion ion-exchange resins and organic extractions. Nickel-63 is purified in chloroform as nickel dimethylglyoxime and back extracted with dilute HCl and then complexed with ammonium thiocyanate and precipitated with pyridine. Nickel precipitate is then dissolved in cocktail for counting with a liquid scintillation counter.