バイオマスの誘導体化による新規金属捕集剤の合成とその分析化学的応用

概要

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A cross-linked chitosan (CLC) was newly synthesized with ethylene glycol diglycidyl ether (EGDE). Novel chelating resins, possessing IDA (IDA-CLC),IDP (IDP-CLC), glycine (glycine-CLC), valine (valine-CLC), leucine (leucine-CLC) and serine (serine-CLC) moieties, were synthesized, and were applied to the collection and concentration of trace metals in environmental water samples. The adsorption of metal ions at 10 ng ml^<-1> levels on chelating chitosan resins was studied by a column-treatment. Synthesized chitosan resins are specific for each moiety as follows: CLC for the collection of Hg(II) in conc. HCl solution; IDA-CLC for matrix elimination and multi-elements collection; IDP-CLC for the separation of rare earth elements (REEs); glycine-CLC for the collection of Bi(III); leucine-CLC for the collection of Mo(VI); and serine-CLC for the collection of U(VI). The synthesized resins could be used for the preconcentration of these elements in environmental water samples by column operation prior to determination by ICP-MS, ICP-AES and GFAAS.
社団法人日本分析化学会の論文
2004-03-05