Jump to main content
Jump to site search


Microwave-assisted-demulsification–dispersive liquid–liquid microextraction coupled with gas chromatography–mass spectrometry for the determination of PAHs in water

Author affiliations

Abstract

In this study, a novel technology of microwave-assisted-demulsification–dispersive liquid-liquid microextraction (MAD–DLLME) was developed for the extraction of polycyclic aromatic hydrocarbons (PAHs) in environmental water samples, which was followed by gas chromatography–mass spectrometry (GC–MS). The key to MAD–DLLME is based on the formation of an emulsion, where target analytes can partition between two phases, and subsequently employing microwave irradiation to achieve phase separation. To the best of our knowledge, it's the first time that microwave-assisted-demulsification has been introduced into sample preparation technology. Under the optimal conditions, the response of the proposed method was found to be linear in the concentration range of 0.05–10.0 μg L−1 for most target analytes. The limits of detection for S/N = 3 ranged between 0.3 and 7.1 ng L−1, and relative standard deviations (RSDs) were in the range of 1.1–6.7%. Finally, water samples collected from West Lake and the Qiantang River (Hangzhou, China) were used for verification of the applicability of the developed method, which was demonstrated to be rapid, simple, efficient, reliable, and environmentally friendly.

Graphical abstract: Microwave-assisted-demulsification–dispersive liquid–liquid microextraction coupled with gas chromatography–mass spectrometry for the determination of PAHs in water

Back to tab navigation

Supplementary files

Publication details

The article was received on 12 Aug 2018, accepted on 19 Sep 2018 and first published on 19 Sep 2018


Article type: Paper
DOI: 10.1039/C8AY01794H
Citation: Anal. Methods, 2018, Advance Article
  •   Request permissions

    Microwave-assisted-demulsification–dispersive liquid–liquid microextraction coupled with gas chromatography–mass spectrometry for the determination of PAHs in water

    X. Wang, J. Nie, G. Yu, P. Wang, Z. Li and M. Lee, Anal. Methods, 2018, Advance Article , DOI: 10.1039/C8AY01794H

Search articles by author

Spotlight

Advertisements