Patent ID: 8663597

Claim:
A method of obtaining 68 Ga by: (i) eluting a 68 Ge/ 68 Ga radioisotope generator with a chloride ion solution which comprises 0.05-0.2 M aqueous hydrochloric acid solution and has a total chloride ion solution of 3 to 5 M concentration, wherein said solution has a pH of less than 2, to give an eluate containing 68 Ga as GaCl 4 − ; (ii) passing the eluate from step (i) down an anion exchange resin, wherein the 68 GaCl 4 − is trapped on the resin; (iii) eluting the trapped 68 GaCl 4 − from step (ii) with water or aqueous buffer solution, to give an aqueous solution of 68 GaCl 3 .