Solid-Phase Extraction on Alkyl-bonded Silica Gels in Inorganic Analysis

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  • SPIVAKOV Boris Ya.
    Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences
  • MALOFEEVA Galina I.
    Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences
  • PETRUKHIN Oleg M.
    Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences

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Description

Solid-phase extraction (SPE) is an effective tool for the preconcentration of trace elements and their separation from various sample constituents. Octadecyl and other alkyl-bonded silica gels are most widely used for these purposes. The fundamentals of the SPE of inorganic ions are reviewed and compared with those of related techniques (liquid-liquid extraction and reversed-phase liquid chromatography). The extraction of ions in the form of chelate compounds, inorganic salts solvated by neutral reagents, and ion-pair compounds is considered. Numerous applications of SPE to the separation and preconcentration of different elements and their species, including on-line combinations with instrumental determination techniques, are described and tabulated.

Journal

  • Analytical Sciences

    Analytical Sciences 22 (4), 503-519, 2006

    The Japan Society for Analytical Chemistry

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