Immobilization of 1-Allyl-2-thiourea onto Poly(styrene-co-divinylbenzene) Gel by -Ray Irradiation and Adsorption Properties of Zinc bis dimethyldithiocarbamate

Ko, B.-S.*; Yoshimura, Kimio; Sinananwanich, W.*; Maekawa, Yasunari

no journal, , 

Diallyl phthalate-contained 1-Allyl-2-thiourea (FDA/ATU) was chemically combined on the poly(styrene-co-divinylbenzene) (PSD) particle surface by ray irradiation method. The adsorption of zinc ions was found to increase with increasing the amount of ATU on the PSD particles. The adsorption of zinc ions was strongly dependent of the pH, and the maximum effect was demonstrated in the region of pH 5-7. At pH 7, the amount of zinc adsorption increased 2.64 times compared with the untreated PSD particles. The adsorbed zinc ions adsorbed on the modified PSD particles suppressed the decomposition of Zinc bis(dimethyldithiocarbamate) (Ziram), and thus increased its adsorption capacity. In addition, the FDA/ATU-modified PSD particles could be used repeatedly with a high level of the Ziram adsorption and recovery ability. Therefore, a simple and quick solid phase adsorption process of the Ziram analysis could be established using the FDA/ATU-modified PSD particles.