Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10556805 | Microchemical Journal | 2011 | 6 Pages |
Abstract
The CCTS-DPA resin can adsorb several metal cations and several oxoanionic elements at appropriate pH. However, di-2-propanolamine (DPA) attached to cross-linked chitosan (CCTS) showed excellent ability and selectivity for the adsorption of germanium at pH 6 to 9. The adsorption capacity of the resin for germanium (IV) was found to be 106 mg gâ 1 resin, whereas the adsorption rate constant was 9.82 Ã 10â 2 minâ 1. Through the column treatment, alkali and alkaline earth matrices in river water and seawater matrices could be completely removed. The resin can also successfully remove chloride and selenium that can interfere with the direct determination of germanium by ICP-MS. The applicability of the CCTS-DPA resin was further demonstrated for the collection/preconcentration of germanium in environmental water samples and its determination by ICP-MS. The concentrations of germanium in tap water, river water and seawater samples were found in the range of 0.011 to 0.022 μg Lâ 1.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Akhmad Sabarudin, Tomonari Umemura, Shoji Motomizu,