THE PREPARATION OF CARRIER-FREE SILVER-111
An ion exchange procedure by means of which a radiochemically pure, carrier-free solution of silver-111 may be prepared from neutron irradiated palladium in about two hours is described. Palladium metal (0.1 g), after irradiation for 4 to 6 days in a neutron flux of l0/sup 12/n/cm/sup 2//sec/sup -1/ , is dissolved in aqua regia and the resulting solution is evaporated to dryness. After heating to drive off the remaining traces of nitric acid, the residue is dissolved in a small volume of l0 M hydrochloric acid and placed on a column (dia. 1 cm, length 25 cm) of the anion exchange resin Deacidite FF. The silver-111 is then washed off the column with 50 ml of 10 M hydrochloric acid. The hydrochloric acid solution is evaporated to dryness and the residue dissolved in dilute nitric acid. (N.W.R.)
- Research Organization:
- Royal Cancer Hospital, London
- NSA Number:
- NSA-16-005383
- OSTI ID:
- 4822368
- Journal Information:
- Intern. J. Appl. Radiation and Isotopes, Journal Name: Intern. J. Appl. Radiation and Isotopes Vol. Vol: 12
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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