Development of chelating resins and their ability of collection and separation for metal ions

作者：Oshita Koji^*; Motomizu Shoji

来源：Bunseki Kagaku, 2008, 57(5): 291-311.

DOI：10.2116/bunsekikagaku.57.291

• chelating resin
• synthetic polymer
• chitosan
• adsorption ability
• trace analysis

Novel chelating resins derivatized from organic synthetic polymers and a biopolymer, chitosan, have been reviewed with respect to the collection and separation of metal ions in aqueous samples for trace analysis. The adsorption behavior of metal ions on resins and their adsorption abilities have been elucidated in detail. Chelating reins have been widely used in the analytical fields, where pretreatment with chelating resins is a powerful technique, and is requsite for an accurate and reproducible determination of trace metals. In this review, the adsorption properties (adsorption conditions and adsorption capacities) of metal ions on the chelating resins are summarized in detail : as base materials, organic synthetic polymers and a biopolymer are used for developing derivatives with chelating moieties. Also, the applications of chelating resins to trace analysis for metals are described. A number of preconcentration techniques with a batchwise column pretreatment and an on-line column pretreatment method reported for the analysis of trace metals are also reviewed.

• 出版日期2008-5