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Ultrasonication extraction coupled with magnetic solid‐phase clean‐up for the determination of polycyclic aromatic hydrocarbons in soils by high‐performance liquid chromatography
Author(s) -
Yang Fei,
Long Yiming,
Shen Rui,
Chen Chunyan,
Pan Di,
Zhang Qianli,
Cai Qingyun,
Yao Shouzhuo
Publication year - 2011
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.201000684
Subject(s) - extraction (chemistry) , solid phase extraction , chromatography , chemistry , elution , sonication , sample preparation , fourier transform infrared spectroscopy , detection limit , gas chromatography , chemical engineering , engineering
C18‐functionalized magnetic microspheres synthesized in a three‐stage system and characterized by Fourier transform infrared (FTIR) spectroscopy and SEM were applied for clean‐up and enrichment of polycyclic aromatic hydrocarbons (PAHs) in soil samples combined with ultrasonication extraction. Magnetic solid‐phase extraction (MSPE) parameters, such as elution solvents, amounts of sorbents, enrichment time and organic modifier, were optimized together with ultrasonication time and extraction solvents. Under the optimal conditions, the developed method provided spiked recoveries of 63.2–92.8% with RSDs of less than 6.4% and limits of detection were 0.5–1.0 ng/g. This new method provides several advantages, such as high extraction efficiency, convenient extraction procedure and short analysis times. Finally, the method was successfully applied to the determination of polycyclic aromatic hydrocarbons in soil samples.