抄録
The apparent distribution coefficients, Kapp, of glucose and fructose onto cation-exchange resins in calcium-ion form with different divinylbenzene (DVB) contents were observed over a wide concentration ranges. Irrespective of the DVB content of the resin, the Kapp value of glucose was larger with an increase in the glucose concentration, while the Kapp value of fructose was smaller at higher fructose concentrations. A method for estimating the binding constant of fructose to the calcium-ion, BFru, was proposed under the assumption that the constant of glucose could be approximated as zero, and the BFru value was evaluated as 0.66 l/mol. The Kapp values of mannose onto a resin with a DVB content of 4% were also measured at various solute concentrations, and the BMan value was estimated to be 0.31 l/mol.
