Recovery Rate in the Concentration of Semivolatile Polycyclic Aromatic Hydrocarbon (PAH) Solutions

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  • MINEKI Shigeru
    Department of Applied Biological Science, Tokyo University of Science
  • KAWAKAMI Yukiko
    Department of Applied Biological Science, Tokyo University of Science Research Center for Environmental Risk, National Institute for Environmental Studies
  • NAKAJIMA Daisuke
    Research Center for Environmental Risk, National Institute for Environmental Studies
  • SHIOZAKI Takuya
    Japan Environmetal Sanitation Center, Environmental Science Department
  • SUGITA Kazutoshi
    Dia Analysis Service Inc.
  • SHIRAISHI Fujio
    Research Center for Environmental Risk, National Institute for Environmental Studies
  • TAKAGI Yukihiko
    School of Veterinary Medicine, Azabu University
  • GOTO Sumio
    College of Environmetal Health, Azabu University

書誌事項

公開日
2008
DOI
  • 10.5985/jec.18.43
公開者
一般社団法人 日本環境化学会

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説明

Dichloromethane, acetone, and methanol solutions containing semivolatile polycyclic aromatic hydrocarbons with 2 to 6 rings were concentrated using rotary and centrifugal evaporators, and spraying nitrogen, and their recovery rates were compared. With concentration using a rotary evaporator, the recovery rate of low-molecular-weight PAHs was found to be low, but by adjusting the pressure in accordance with the volatilization pressure of the solvent, an almost uniform recovery rate was achieved. When a centrifugal evaporator was used, the recovery rate was approximately 60 %. However, since high-molecular-weight PAHs tended to attach to the internal wall of the vessels used, washing was carried out by applying ultrasonic waves, which improved the recovery rate. With concentration based on nitrogen spraying, an almost uniform recovery rate was achieved.

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  • 環境化学

    環境化学 18 (1), 43-50, 2008

    一般社団法人 日本環境化学会

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