Author/Authors :
Yamashiro، نويسنده , , Kohei and Miyoshi، نويسنده , , Kazuyoshi and Ishihara، نويسنده , , Ryo and Umeno، نويسنده , , Daisuke N. Saito، نويسنده , , Kyoichi and Sugo، نويسنده , , Takanobu and Yamada، نويسنده , , Shinsuke and Fukunaga، نويسنده , , Hiroyuki and Nagai، نويسنده , , Masanori، نويسنده ,
Abstract :
A chelating porous sheet for use in solid-phase extraction was prepared by radiation-induced graft polymerization and subsequent chemical modifications. An epoxy-group-containing vinyl monomer was graft-polymerized onto a porous sheet made of polyethylene. The produced epoxy group of the graft chain was converted into an iminodiacetate group. The chelating porous sheet with a density of the iminodiacetate group of 2.1 mol/kg was cut into disks 13 mm in diameter to fit an empty cylindrical cartridge with a capacity of 6 mL. Breakthrough curves using the chelating-porous-disk-packed cartridge overlapped irrespective of the flow rate of the solution ranging up to 1500 mL/h because of negligible diffusional mass-transfer resistance of the copper ions to the iminodiacetate group of the graft chain.
Keywords :
Iminodiacetate group , Radiation-induced graft polymeization , breakthrough curve , high throughput , Solid-phase extraction , Porous-disk-packed cartridge
