Analysis of Nitropolycyclic Aromatic Hydrocarbons in Fine Particulate Matter by Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry Using Fe 3 O 4 /ZIF-8 Magnetic Nanocomposites as Matrix

Haojiang Wang, Xuan Wang, Wei Bian*, Tijian Sun, Zongwei CAI, Jiancong Wei

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)89-95
Number of pages7
JournalJournal of Applied Spectroscopy
Volume86
Issue number1
DOIs
Publication statusPublished - 15 Mar 2019

Scopus Subject Areas

  • Condensed Matter Physics
  • Spectroscopy

User-Defined Keywords

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

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