| 摘要 |
1530192 Radioactively labelled diagnostic agents MALLINCKRODT INC 17 May 1976 [27 May 1975] 20272/76 Heading A5B [Also in Division Cl] A diagnostic agent comprises a lyophilised product made from a dispersion of colloidal sulphur particles with stannous ions attached containing amino acid as a protective agent in an amount sufficient to reduce degradation of the physical and chemical properties of the dispersion during lyophilization and ageing, said agent having been radioactively labelled e.g. with technetium-99m. Radioactive labelling may be accomplished on the lyophilized product or during reconstitution of the lyophilized product to a dispersion.
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