METHOD OF PRODUCING HIGH-CONCENTRATED TECHNETIUM-99m SOLUTION IN LARGE QUANTITIES
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United States of America Patent
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Issued Date -
Feb 14, 2013
app pub date -
Aug 7, 2012
filing date -
Aug 8, 2011
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Abandoned
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Abstract
A method of producing high concentrated 99mTc solution has the steps of dissolving 99MoO3 pellet with alkali solution; extracting 99mTc from the dissolved solution with ketone type organic solvent; separating an ketone type organic phase containing 99mTc and an aqueous phase; adsorbing and concentrating the separated ketone type organic phase containing 99mTc after removing impurities, through a basic alumina column for impurity removal and an acidic alumina column for adsorption and concentration connected continuously; and eluting 99mTc from the acidic alumina column to which 99mTc is adsorbed by physiological saline, wherein the alkali solution is 6M-NaOH solution or 6M-KOH solution.
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