Analysis of Nitropolycyclic Aromatic Hydrocarbons in Fine Particulate Matter by Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry Using Fe3O4/ZIF-8 Magnetic Nanocomposites as Matrix

  • Haojiang Wang
  • Xuan Wang
  • Wei BianEmail author
  • Tijian Sun
  • Zongwei Cai
  • Jiancong Wei

Core-shell magnetic metal organic nanocrystals were synthesized and used as matrix for matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). Four nitropolycyclic aromatic hydrocarbons (nitro-PAHs) were successfully detected by using negative-ion MALDI-TOF MS without background interference. Furthermore, the magnetic nanocomposites (MNCs) coated with zeolitic imidazolate framework-8 (ZIF-8) showed excellent adsorption and enrichment capacity, and can be isolated with a magnet and directly spotted on the stainless steel plate for MALDI measurement. It was also analyzed nitro-PAHs in PM2.5 samples using the ZIF-8-coated magnetic nanocomposite as adsorbent and matrix.


matrix-assisted laser desorption/ionization time-of-flight mass spectrometry Fe3O4/ZIF-8 magnetic nanocomposites nitropolycyclic aromatic hydrocarbons enrichment and analysis 


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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • Haojiang Wang
    • 1
  • Xuan Wang
    • 2
  • Wei Bian
    • 1
    Email author
  • Tijian Sun
    • 1
  • Zongwei Cai
    • 3
  • Jiancong Wei
    • 1
  1. 1.School of Basic Medical ScienceShanxi Medical UniversityTaiyuanChina
  2. 2.College of PharmacyShanxi Medical UniversityTaiyuanChina
  3. 3.Hong Kong Baptist University, State Key Laboratory of Environmental and Biological AnalysisHong KongChina

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