High-throughput solid-phase extraction of metal ions using an iminodiacetate chelating porous disk prepared by graft polymerization.
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.
Department of Applied Chemistry and Biotechnology, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan.
Kohei
K
Yamashiro
Kazuyoshi
K
Miyoshi
Ryo
R
Ishihara
Daisuke
D
Umeno
Kyoichi
K
Saito
Takanobu
T
Sugo
Shinsuke
S
Yamada
Hiroyuki
H
Fukunaga
Masanori
M
Nagai
D000085:Acetates / Q000737:chemistry*; D002614:Chelating Agents / Q000737:chemistry*; D008670:Metals / Q000737:chemistry / Q000302:isolation & purification*; D011108:Polymers / Q000737:chemistry*
D000085:Acetates; D002614:Chelating Agents; D008670:Metals; D011108:Polymers