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Elution profile for 64Cu purification. Initial elution is with 5 mL 9M HCl (fraction 1), followed by 2 fractions of 3 mL and 2 mL 6M HCl respectively (fractions 2-3), then 1 mL 0.1M HCl (fraction 4) with all other fractions (5-12) being eluted with 0.5 mL 0.1M HCl.
