Rapid detection of perfluorinated sulfonic acids through preconcentration by bubble bursting and surface‐assisted laser desorption/ionization

We developed a preconcentration method in which aerosol droplets containing enriched perfluorinated sulfonic acids (PFSs) are generated through bubble bursting and collected. The droplets were subjected to PFS analysis of perfluorohexane sulfonic acid (PFHxS) and perfluorooctanesulfonic acid (PFOS)...

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Bibliographic Details
Published in:Journal of mass spectrometry. 2021-04, Vol.56 (4), p.e4667-n/a
Main Authors: Lee, Chuping, Yang, Tzu‐Ling, Yao, Yu‐Zhen, Li, Jian‐You, Huang, Cheng‐Liang
Format: Article
Language:English
Subjects:
Acids
aerosol enrichment
bubble
Bubble bursting
Bubbles
Bursting
Desorption
Detection
Drinking water
Droplets
Ionization
Ions
Lasers
MALDI
Mass spectrometry
Mass spectroscopy
nanoparticles
perfluorinated compounds
Perfluorohexane
Perfluorooctane sulfonic acid
preconcentration
SALDI
Silver
Sulfonic acid
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Summary:We developed a preconcentration method in which aerosol droplets containing enriched perfluorinated sulfonic acids (PFSs) are generated through bubble bursting and collected. The droplets were subjected to PFS analysis of perfluorohexane sulfonic acid (PFHxS) and perfluorooctanesulfonic acid (PFOS) through surface‐assisted laser desorption/ionization‐time‐of‐flight mass spectrometry; silver nanoplates (AgNPts) were assisting materials. The method was highly efficient, with an approximately three‐order magnitude enhancement (5 × 10−13 to 1 × 10−11 M). Ultralow PFS concentrations (0.5 ng/L of PFOS; 0.4 ng/L of PFHxS) were detected in preconcentrated tap water containing PFSs. Our method has potential for rapid real‐world PFS detection in water.
ISSN:1076-5174
1096-9888
DOI:10.1002/jms.4667