Proton-activation technique for the determination of antimony.
Proton-activation analysis has been applied to the determination of antimony. Thick-target yields and analytical sensitivities are given for the indicator-radionuclides (119m)Te, (119g)Te, (121m)Te, (121g)Te, (123m)Te, (120m)Sb and (122g)Sb for proton energies between 9 and 25 MeV. In irradiations with a 5-muA beam for 5 hr, followed by a specific separation of the indicator-radionuclides, limits of detection at the ppM level can be achieved. Data are given for the most significant interfering reactions. Antimony was determined instrumentally in bismuth of "very pure" grade and the results are compared with those obtained from two independent techniques.
Krivan
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Universität Ulm, Sektion Analytik und Höchstreinigung, D-7900 Ulm, Oberer Eselsberg N-26, Federal Republic of Germany.
Barth
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