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

*Corresponding author for this work

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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