alexa Production and quality control of radioactive yttrium microspheres for medical applications.
Chemical Engineering

Chemical Engineering

Journal of Chromatography & Separation Techniques

Author(s): Ghahramani MR, Garibov AA, Agayev TN

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Abstract In this paper, a method for production of yttrium silicate microspheres is reported. Yttrium silicate microspheres with approximate sizes of 20-50µm were obtained when an aqueous solution of Y(NO3)3 was added to tetraethyl orthosilicate (TEOS) and was pumped into silicone oil under constant stirring. The shapes of the particles produced by the proposed method were regular and nearly spherical. The spherical shapes, composition and element distribution were investigated by scanning electron microscopy (SEM), carbon/sulfur analysis and SEM/EDS mapping analysis. Paper chromatography was used to identify radiochemical impurities in the radioactive microspheres. The radionuclide purity was determined using a gamma spectrometry system and an ultra-low-level liquid scintillation spectrometer. The results indicated that the proposed silicone oil spheroidization method is suitable for the production of yttrium silicate microspheres. Copyright © 2013 Elsevier Ltd. All rights reserved. This article was published in Appl Radiat Isot and referenced in Journal of Chromatography & Separation Techniques

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