Research Article

Detection of Polycyclic Aromatic Hydrocarbons in Water Samples by Annular Platform-Supported Ionic Liquid-Based Headspace Liquid-Phase Microextraction

Figure 7

Chromatograms of (a) standard solution (200 µg·L−1), (b) ionic liquid extracted spiked seawater (10 µg·L−1), and (c) ionic liquid-extracted blank seawater. Peaks: (1) naphthalene; (2) acenaphthene; (3) fluorene; (4) anthracene; (5) fluoranthene; (6) pyrene.
(a)
(b)
(c)