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Volume 62, Issue 3


Extraction of copper ions using silica gel with chemically modified surface

Iwona Rykowska / Wiesław Wasiak / Joanna Byra
Published Online: 2008-05-02 | DOI: https://doi.org/10.2478/s11696-008-0020-4


The applicability of silica gels for the application in solid-phase extraction was tested. Silica was modified with ketoimine groups. Surface characteristics of the modified silica were determined by elemental analysis, NMR spectra of solid phases (29Si CP MAS NMR), analysis of pore size distribution of the silica support, and nitrogen adsorption-desorption. Newly proposed sorbents with ketoimine groups were applied in the preconcentration of trace amounts of the Cu (II) ions from lake water, post-industrial water, and demineralized water unburdened back to the lake.

Keywords: silica gel; cooper ions; solid-phase extraction; ketoimine groups

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About the article

Published Online: 2008-05-02

Published in Print: 2008-06-01

Citation Information: Chemical Papers, Volume 62, Issue 3, Pages 255–259, ISSN (Online) 1336-9075, DOI: https://doi.org/10.2478/s11696-008-0020-4.

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© 2008 Institute of Chemistry, Slovak Academy of Sciences.

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