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Abstract
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Linear ionic liquid bonded to fused silica and
its application as a solid-phase microextraction
fiber for the extraction of bisphenol A (BPA) from
water samples were studied. After optimization of
microextraction conditions (15 mL sample volume,
extraction time of 40 min, extraction temperature
of 30 ± 1°C, 300 μL acetonitrile as the desorption
solvent, and desorption time of 7 min), the fiber
was used to extract BPA from packed mineral water,
followed by HPLC–UV on an XDB-C18 column
(150 × 4.6 mm id, 3.5 μm particle) with a mobile
phase of acetonitrile–water (45 + 55%, v/v) and
flow rate of 1 mL . min−1). A low LOD (0.20 μg . L−1)
and good linearity (0.9977) in the calibration graph
indicated that the proposed method was suitable for
the determination of BPA.
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