Preparation of ⁹⁹Mo/^99mTc generator based on cross-linked chitosan polymer using low-specific activity (n,γ)⁹⁹Mo

The cross-linked chitosan polymer (CCM) is an emerging non-toxic, bio-degradable adsorbent matrix. The CCM matrix has very high adsorption for Mo and thus can be utilized to prepare ⁹⁹Mo/^99mTc generator using low-specific activity (n, γ) ⁹⁹Mo. The precursors for this CCM synthesis are Chitosan and glutaraldehyde. Characterization of CCM is done by XRD, SEM, FT-IR spectroscopy. Adsorption of (n, γ)⁹⁹Mo on CCM (both oxidized and non-oxidized) is performed with adsorption capacity 600mg Mo/g of polymer and with 70% and 40% ^99mTc elution efficiency. (author)