Integration of the Cleanup Process: Pretreatment of Polycyclic Aromatic Hydrocarbons from Diesel Exhaust Particles on Silica Gel Beads in a Microchannel

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  • MASAKI Hiroyuki
    Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University
  • HOSHI Jyunya
    Analytical Research Division, Tokyo Metropolitan Research Institute for Environmental Protection
  • AMANO Saeko
    Analytical Research Division, Tokyo Metropolitan Research Institute for Environmental Protection
  • SASAKI Yuko
    Analytical Research Division, Tokyo Metropolitan Research Institute for Environmental Protection
  • KORENAGA Takashi
    Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University

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Abstract

This paper presents an integrated microfluidic system that performs cleanup for polycyclic aromatic hydrocarbons (PAHs) from diesel exhaust particles on silica gel beads in a microchip. A column chromatography phase was constructed by filling the silica gel beads into a microchannel that had a dam structure 25 µm high. The height of the dam structure was determined according to the rate of the wet etching. This work on the cleanup of PAHs from diesel exhaust particles showed that the microchip-based system has the same performance as the conventional method on the solid phase extraction column and has some advantages, such as less reagent consumption and shorter pretreatment time, over the conventional method.

Journal

  • Analytical Sciences

    Analytical Sciences 22 (3), 345-348, 2006

    The Japan Society for Analytical Chemistry

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