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- Title
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.
- Authors
Wang, Haojiang; Wang, Xuan; Bian, Wei; Sun, Tijian; Cai, Zongwei; Wei, Jiancong
- 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.
- Subjects
MATRIX-assisted laser desorption-ionization; TIME-of-flight mass spectrometry; AROMATIC compounds; PARTICULATE matter; DESORPTION; LASERS
- Publication
Journal of Applied Spectroscopy, 2019, Vol 86, Issue 1, p89
- ISSN
0021-9037
- Publication type
Article
- DOI
10.1007/s10812-019-00786-5