Black tea caffeine in the radiochemical separation of 89Zr produced from alpha particle irradiation on natY
摘要
46 MeV alpha particle irradiation on natY produced 89Zr and 90Nb. After 90Nb was decayed out, separation of 89Zr from bulk yttrium was carried out using caffeine extracted from black tea leaves. At 2 M Na2SO4 concentration caffeine was precipitated, and 89Zr was found to be preferentially precipitated with caffeine at natural pH of Na2SO4. With 10 mg caffeine, ~ 56% of 89Zr was precipitated with caffeine along with 1.5% of bulk yttrium.