Abstract

A new method for the preparation of99m Tc-tin colloid has been developped using the electrolytic introduction of Sn(II) ions into 99m Tc pertechnetate solutions. The colloid has been found to be selectively trapped in the reticulo endothetial system in distribution studies with mice. The method gives a liver scanning agent that is easy to prepare and safe for administration. A kit is described for the electrolytic preparation of 99m Tc-tin colloid for use in the hospitals. The ‘kit’ is simple and economic and enables the preparation of 99m Tc-tin colloid in less than five minutes.

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