Photoionization of environmentally polluting aromatic chlorides and nitrides on the water surface by laser and synchrotron radiations

Miki Sato, Yuki Maeda, Toshio Ishioka, Akira Harata

研究成果: ジャーナルへの寄稿記事

1 引用 (Scopus)

抄録

The detection limits and photoionization thresholds of polycyclic aromatic hydrocarbons and their chlorides and nitrides on the water surface are examined using laser two-photon ionization and single-photon ionization, respectively. The laser two-photon ionization methods are highly surface-selective, with a high sensitivity for aromatic hydrocarbons tending to accumulate on the water surface in the natural environment due to their highly hydrophobic nature. The dependence of the detection limits of target aromatic molecules on their physicochemical properties (photoionization thresholds relating to excess energy, molar absorptivity, and the octanol-water partition coefficient) is discussed. The detection limit clearly depends on the product of the octanol-water partition coefficient and molar absorptivity, and no clear dependence was found on excess energy. The detection limits of laser two-photon ionization for these types of molecules on the water surface are formulated.

元の言語英語
ページ(範囲)4560-4569
ページ数10
ジャーナルAnalyst
142
発行部数23
DOI
出版物ステータス出版済み - 12 7 2017

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Photoionization
Synchrotrons
Laser radiation
Synchrotron radiation
Nitrides
Chlorides
Lasers
ionization
Photons
laser
chloride
Ionization
Radiation
Limit of Detection
surface water
Water
Octanols
partition coefficient
physicochemical property
Aromatic Hydrocarbons

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Biochemistry
  • Environmental Chemistry
  • Spectroscopy
  • Electrochemistry

これを引用

Photoionization of environmentally polluting aromatic chlorides and nitrides on the water surface by laser and synchrotron radiations. / Sato, Miki; Maeda, Yuki; Ishioka, Toshio; Harata, Akira.

:: Analyst, 巻 142, 番号 23, 07.12.2017, p. 4560-4569.

研究成果: ジャーナルへの寄稿記事

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