Title: Preparation of radioactively labeled monodisperse silica spheres of colloidal size
Abstract: A recently developed technique of growing monodisperse silica spheres of predetermined size in alcoholic solutions facilitates the incorporation of certain radioactive tracers. Spheres growing to a final diameter of 8 × 10−5 cm were used in a study with radioactive isotopes including 7Be, 51Cr, 54Mn, 58Co, 59Fe, 65Zn, 124Sb, 134Cs, and 141Ce. The results reveal that those metals which form oxides of low solubility at pH ≥ 7 are easily incorporated into the bulk of the silica spheres when present during the growth of the particles in an amount not exceeding 1–10 ppm with respect to the total mass of silica in the system.
Publication Year: 1969
Publication Date: 1969-08-01
Language: en
Type: article
Indexed In: ['crossref', 'pubmed']
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Cited By Count: 30
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