A durable and ready to use Ge-Ga generator column material is required for its routine use in radiopharmaceutical procedures. The present work comprises preliminary studies for development and evaluation of chitosan-TiO based microsphere (C-TOM) composite towards its competence as a column material. The batch uptake studies showed higher distribution coefficients for Ge vis-à-vis Ga in the complete concentration range of HCl examined (0.01-1 mol.L). Furthermore, C-TOM showed enduring physical and chemical stability in 0.01 mol.L HCl with persistent Ga elution profiles (>95%) and negligible Ge breakthrough (2 × 10%) for the preliminary evaluation period of ∼2 months. Overall, the studies indicated that, Ga with high radionuclidic purity (≥99.99%) can be eluted routinely in a small volume (∼1.5 mL) of 0.01 mol.L HCl proving its potentials as a novel solid phase extractant for Ge/Ge generator system.
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