Journal
JOURNAL OF SEPARATION SCIENCE
Volume 41, Issue 5, Pages 1149-1155Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/jssc.201701027
Keywords
basalt fibers; gold nanoparticles; high-performance liquid chromatography; polycyclic aromatic hydrocarbons; solid-phase microextraction
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Funding
- Shandong Provincial Natural Science Foundation of China [ZR2017MB043]
- National Natural Science Foundation of China (NSFC) [21405061, 21777054]
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Basalt fibers were functionalized with gold nanoparticles and characterized by scanning electron microscopy and energy-dispersive X-ray spectroscopy. An in-tube solid-phase microextraction device was developed by packing the functionalized basalt fibers in a polyether ether ketone tube. The device was connected into high performance liquid chromatography equipment with a diode array detector to build online enrichment and analysis system. Eight polycyclic aromatic hydrocarbons were used as model analytes, important factors including sampling rate, sampling volume, organic solvent content in sample, and desorption time were investigated. Linear range (0.0120 mu g/L), detection limits (0.003-0.015 mu g/L), and enrichment factors (130-1628) were given by the online analysis method. Relative standard deviations (n = 5) of extraction repeatability on one tube and tube-to-tube repeatability were less than 5.2 and 14.7%, respectively. The analysis method was applied to detect polycyclic aromatic hydrocarbons in environmental water samples, and relative recoveries ranged from 87 to 128%.
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