Abstract
Riboflavin was adsorbed on a free form of strongly acidic cation exchange resin and all anion exchange resins. FMN and FAD were adsorbed slightly on a free form of strongly acidic cation exchange resin and perfectly on a free-and salt-form of anion exchange resins. FAD was easily adsorbed on any form of anion exchange resins and desorbed with sodium salycilate, sodium trichloroacetate and sodium chloride solution from them. From 3ml, each of Amberlite IRA-401-Cl saturated with FAD, the space velocity of flow rate being adjusted to 4,FAD was eluted 51% and 75% with 5 and 10% sodium chloride solution, respectively.
