Citation:
LI Xin-Hong, XIANG Lei, HUANG Yu-Hong, MO Ce-Hui, LI Yan-Wen, LI Hui, CAI Quan-Ying. Simultaneous Determination of 15 Kinds of Phthalate Esters in Black and Odorous Water by Solid Phase Extraction and Gas Chromatography-Mass Spectrometry[J]. Chinese Journal of Analytical Chemistry,
;2019, 47(11): 1842-1849.
doi:
10.19756/j.issn.0253-3820.191276
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A solid phase extraction and gas chromatography/mass spectrometry (GC-MS) method was developed for simultaneous extraction and determination of fifteen phthalate esters (PAEs) in black and odorous water. The quantification of 15 kinds of PAEs was performed using a HP-5MS column for chromatographic separation, followed by electren ionization (EI) mass spectra and selected ion monitoring (SIM). Under optimal extraction conditions, 100 mL of water sample at pH 3 was loaded into a WondaSep C18 cartridge, and then eluted with 6 mL of methanol/dichloromethane (1:4, V/V). Satisfactory linearity (R2>0.991) for the target PAEs in matrix of black and odorous water was obtained in the range of 0.05-2 μg/mL, with detection limit of 0.04-0.38 μg/L. The recoveries at two spiked levels (2 and 10 μg/L) in the matrix of black and odorous water generally ranged from 70% to 115%, with relative standard deviation of lower than 10%. The developed method was successfully used to detect PAEs in the actual black and odorous water samples, with total concentration and recoveries (spiked at 2 μg/L) ranging from 2.57 μg/L to 13.69 μg/L and 62% to 115%, respectively.
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