title: Species dependent studies of no-carrier-added (93m)Mo: A green method.
abstract: The present paper reports a combination of radioanalytical and green methodology for the ultra-trace scale speciation of molybdenum. The differential attitude of iron-doped calcium alginate (Fe-CA) and chitosan biopolymers towards no-carrier-added (93m)Mo radionuclide was studied to develop environmentally sustainable speciation methodology in ultra-trace scale. The affinity of (93m)Mo towards the Fe-CA beads is greater than that of chitosan. Species information was obtained by comparing the adsorption profile of (93m)Mo on Fe-CA and chitosan biopolymer with the software code CHEAQS PRO program. From the experimental results it is concluded that no-carrier-added (93m)Mo radionuclide form mononuclear species instead of polynuclear species in aqueous solution. Use of biodegradable, non-toxic biopolymer makes this method a step forward towards green chemistry.
authors.affiliation: Chemical Sciences Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700064, India. swadeshchem@rediffmail.com
authors.forename: Swadesh
authors.initials: S
authors.lastname: Mandal
authors.forename: Dalia
authors.initials: D
authors.lastname: Nayak
mesh_terms: D000464:Alginates; D048271:Chitosan; D020723:Glucuronic Acid; D055772:Green Chemistry Technology / Q000379:methods*; D006603:Hexuronic Acids; D007501:Iron; D008982:Molybdenum / Q000737:chemistry*; D011868:Radioisotopes / Q000737:chemistry*
chemical_list: D000464:Alginates; D006603:Hexuronic Acids; D011868:Radioisotopes; D008982:Molybdenum; D020723:Glucuronic Acid; D048271:Chitosan; D007501:Iron