Adsorption and interface accumulation of aquasol and organosol carbon particles labeled with Tc-99m

Aerosol panicles of Tc-99m-labeled carbon were prepared by sublimation and introduced in various liquid media. The adsorption of the aquasol and organ osol particles were studied for various adsorbing substances and media, wit h the effect of surface treatment and voltage application. The particles of ten accumulated at the aqueous-organic interface, and also on the vessel su rface in the presence of both aqueous and organic phases. The distribution of the particles was examined by a gamma-camera for different organic phase s under various concentrations of electrolytes in the aqueous phase.