Simultaneous determination of sixteen perfluorinated organic compounds in surface water by solid phase extraction and ultra performance liquid chromatography with electrospray ionization tandem mass spectrometry

doi:10.3724/SP.J.1123.2014.01042

Abstract

Abstract:

A high-throughput detection method has been developed for the determination of sixteen perfluorinated organic compounds (PFCs) in surface water by solid phase extraction-ultra performance liquid chromatography coupled with electrospray ionization tandem mass spectrometry (SPE-UPLC-ESI-MS/MS). The water samples were concentrated and purified through WAX solid phase extraction cartridges. The UPLC separation was performed on an ACQUITY UPLC^TM BEH C₁₈ column utilizing a gradient elution program of methanol (containing 2 mmol/L ammonium acetate) and water (containing 2 mmol/L ammonium acetate) as the mobile phases at a flow rate of 0.4 mL/min. The MS/MS detection was performed under negative electrospray ionization (ESI^-) in multiple reaction monitoring (MRM) mode. Good linearities were observed in the range of 0.5-100 μg/L or 1.0-100 μg/L with correlation coefficients from 0.9987 to 0.9999. The limits of detection (LODs) for the sixteen perfluorinated organic compounds were in the range of 0.06-0.46 ng/L. The recoveries ranged from 67.6% to 103% with the relative standard deviations between 2.94% and 12.0%. This method was characterized by high sensitivity and precision, extensive range and high speed, and can be applied for the analysis of PFC contaminants in surface water.

Key words: electrospray ionization tandem mass spectrometry (ESI-MS/MS), perfluorinated organic compounds, solid phase extraction (SPE), surface water, ultra performance liquid chromatography (UPLC)

CLC Number:

O658

ZHANG Ming, TANG Fangliang, YU Yayun, CHEN Feng, XU Jianfen, YE Yonggen. Simultaneous determination of sixteen perfluorinated organic compounds in surface water by solid phase extraction and ultra performance liquid chromatography with electrospray ionization tandem mass spectrometry[J]. Chinese Journal of Chromatography, 2014, 32(5): 472-476.

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