title: Estimation of Model VII humic binding constants for Pd2+, Sn2+, U4+, NpO2(2+), Pu4+ and PuO2(2+).
abstract: Using previously established procedures that utilise linear free energy relationships, we estimated binding constants for the Windermere Humic Aqueous Model VII (WHAM/Model VII) for several radionuclide cations (Pd(2+), Sn(2+), U(4+), NpO(2)(2+), Pu(4+) and PuO(2)(2+)). This extends the number of cations that can be calculated with the model above the 40 included in the original Model VII work. When combined with equilibrium constants for inorganic species this allows the calculation of equilibrium distributions of chemical species under a wide range of conditions.
authors.affiliation: Centre for Radiochemistry Research, School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, UK. tony@biogeochemistry.org.uk
authors.forename: Anthony
authors.initials: A
authors.lastname: Stockdale
authors.forename: Nick D
authors.initials: ND
authors.lastname: Bryan
authors.forename: Stephen
authors.initials: S
authors.lastname: Lofts
mesh_terms: D001578:Benzopyrans / Q000737:chemistry; D002412:Cations / Q000737:chemistry; D004785:Environmental Pollutants / Q000737:chemistry; D006207:Half-Life; D006812:Humic Substances / Q000032:analysis*; D007854:Lead / Q000737:chemistry*; D008956:Models, Chemical; D009405:Neptunium / Q000737:chemistry*; D011005:Plutonium / Q000737:chemistry*; D011868:Radioisotopes / Q000737:chemistry; D014001:Tin / Q000737:chemistry*; D014501:Uranium / Q000737:chemistry*
chemical_list: D001578:Benzopyrans; D002412:Cations; D004785:Environmental Pollutants; D006812:Humic Substances; D011868:Radioisotopes; D007854:Lead; D014501:Uranium; D011005:Plutonium; D009405:Neptunium; D014001:Tin; C005023:fulvic acid