Multi-layer Cartridges Filled with Multi-Walled Carbon Nanotubes for the Determination of Volatile Organic Compounds in Indoor Air

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  • LIU Jiemin
    The School of Applied Science, University of Science and Technology Beijing
  • LI Lin
    The School of Applied Science, University of Science and Technology Beijing Department of Chemistry, Nankai University
  • NING Zhanwu
    Beijing Municipal Institute of Labor Protection
  • ZHAO Peng
    The School of Applied Science, University of Science and Technology Beijing
  • FAN Huili
    The School of Applied Science, University of Science and Technology Beijing

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Abstract

A kind of new multi-layer adsorbent including Tenax TA/multi-walled carbon nanotubes (MWCNTs)/Carboxen 564 was developed for collecting volatile organic compounds. The adsorption and desorption efficiencies of 11 kinds of adsorbents (including Activated charcoal, Tenax TA, Carboxen 564, Chromosorb 101, Chromosorb 102, Chromosorb 103, Chromosorb 105, Porapak Q, GDX 301, XAD-2, and MWCNTs) were compared. By combining the advantages of Tenax TA, MWCNTs, and Carboxen 564, new type of multi-layer adsorbents was developed. The adsorption and desorption efficiency, the sampling reproducibility, and the effect of water were improved using multi-layer adsorbents, Tenax TA/MWCNTs/Carboxen 564. New multi-layer adsorbents were successfully applied to the determination of volatile organic compounds (VOCs) in ambient air.

Journal

  • Analytical Sciences

    Analytical Sciences 24 (4), 515-519, 2008

    The Japan Society for Analytical Chemistry

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