Liquid-Liquid Extraction Combined with UPLC for the Determination of Polycyclic Aromatic Hydrocarbons in Water Samples

YANGXiao-Li; YANGMei; SHAOXin; ZHANGChun-Lin; YANGXiao-Li

doi:10.3969/j.issn.2097-0013.2022.03.017

2022 Vol. 38, No. 3

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Article navigation > South China Geology > 2022 > 38(3): 561-567

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YANGXiao-Li, YANGMei, SHAOXin, ZHANGChun-Lin, YANGXiao-Li. 2022. Liquid-Liquid Extraction Combined with UPLC for the Determination of Polycyclic Aromatic Hydrocarbons in Water Samples. South China Geology, 38(3): 561-567. doi: 10.3969/j.issn.2097-0013.2022.03.017

Citation:

YANGXiao-Li, YANGMei, SHAOXin, ZHANGChun-Lin, YANGXiao-Li. 2022. Liquid-Liquid Extraction Combined with UPLC for the Determination of Polycyclic Aromatic Hydrocarbons in Water Samples. South China Geology, 38(3): 561-567. doi: 10.3969/j.issn.2097-0013.2022.03.017

Liquid-Liquid Extraction Combined with UPLC for the Determination of Polycyclic Aromatic Hydrocarbons in Water Samples

Wuhan Center of China Geological Survey (Central South China Innovation Center for Geosciences), Wuhan 430205, Hubei, China

Received Date: 27 September 2021

Revised Date: 23 November 2021

Abstract

Abstract

Polycyclic aromatic hydrocarbons (PAHs) are widely distributed in the environment. Being hardly degradable and potentially toxic, PAHs are getting more and more attention. In this work, a method has been developed for the simultaneous determination of 16 PAHs by optimizing the UPLC conditions and the detection wavelength. The chromatographic separation was carried out on ACQUITY UPLC Waters PAH C18 column; water and acetonitrile have been used as the mobile phases. By adjusting the proportions of the mobile phase, complete baseline separation and detection of 16 PAHs could be achieved within 16.5 min．The efficiency in this way reaches twice as high as that of traditional high-performance liquid chromatography. The linearity range yielded was from 0.01 to 5.00 mg/L with a good correlation coefficient (R²＞0.9999), and the MDL ranged from 1.25 to 7.02 ng/L. The relative standard deviation (RSD, n=6) of the determination results was 0.80% - 7.98% and the recovery rates of the target compounds were 65.0% - 104%. This method provides high analysis efficiency and is suitable for simultaneous screening and analysis of PAHs in batch groundwater.
- Liquid-Liquid Extraction /
- UPLC /
- Fluorescence-Ultraviolet Detector /
- Polycyclic Aromatic Hydrocarbons

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