Dry-distillation of astatine-211 from irradiated bismuth targets: a time-saving procedure with high recovery yields.
Astatine-211 was produced via the 209Bi(alpha,2n) 211At reaction. The radionuclide was isolated with a novel procedure employing dry-distillation of the irradiated target material. The astatine was condensed as a dry residue in a PEEK-capillary cryotrap. Distillation was completed within 1-2 min with isolation yields of 92 +/- 3%. Subsequent work-up of the nuclide resulted in final recovery yields of 79 +/- 3%.
Lindegren
S
S
Department of Radiation Physics, Göteborg University, Sahlgrenska University Hospital, Sweden. sture.lindegren@radfys.gu.se
Bäck
T
T
Jensen
H J
HJ
D001246:Astatine / Q000737:chemistry / Q000302:isolation & purification* / Q000528:radiation effects; D001729:Bismuth / Q000737:chemistry*; D006207:Half-Life; D011854:Radiochemistry / Q000295:instrumentation / Q000379:methods; D011868:Radioisotopes / Q000737:chemistry / Q000302:isolation & purification*
D011868:Radioisotopes; D001729:Bismuth; D001246:Astatine