High-throughput solid-phase extraction of metal ions using an iminodiacetate chelating porous disk prepared by graft polymerization

Kohei Yamashiro, Kazuyoshi Miyoshi, Ryo Ishihara, Daisuke Umeno, Kyoichi Saito, Takanobu Sugo, Shinsuke Yamada, Hiroyuki Fukunaga, Masanori Nagai

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)37-42
Number of pages6
JournalJournal of Chromatography A
Volume1176
Issue number1-2
DOIs
Publication statusPublished - 2007 Dec 28
Externally publishedYes

Keywords

  • Breakthrough curve
  • High throughput
  • Iminodiacetate group
  • Porous-disk-packed cartridge
  • Radiation-induced graft polymeization
  • Solid-phase extraction

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Organic Chemistry

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