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Hydrophobic deep eutectic solvents based membrane emulsification-assisted liquid-phase microextraction method for determination of pyrethroids in tea beverages.
Metadata
Journaljournal of chromatography a4.049Date
2020 May 12
3 months ago
Publication Type
Journal Article
Volume
2020-Jul-19 / 1623 : 461204
Author
Qian H 1, Yang Q 1, Qu Y 1, Ju Z 1, Zhou W 1, Gao H 2
Affiliation
  • 2. Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China. Electronic address: [email protected]
Doi
PMIDMESH
Abstract
Deep eutectic solvents (DESs) were used as an extractant for the determination of pyrethroids in environmental water and tea beverage samples. Three different acids were chosen as hydrogen bond donors for preparation of DESs, and decanoic acid was optimal because of its high recovery. Factors affecting relative recovery were optimized individually, including salt addition, surfactant addition, extraction temperature, DES amount, and sample volume etc. Under the optimized experimental conditions, the relative recovery of pyrethroids was from 89.3% to 97.7%, with relative standard deviation (RSD) values ranging from 1.75% to 2.73%. The linear correlation coefficient ranged from 0.9981 to 0.9992, and the linear range was between 1.9 and 500 μg/L. Based on a signal-to-noise ratio (S/N) of 3:1, the limit of detection (LOD) values were 0.56 to 1.24 μg/L. The enrichment factor ranged from 92 to 105. In conclusion, good extraction efficiency was achieved in tea beverage samples under the optimized conditions.
Keywords: High performance liquid chromatography (HPLC) Hydrophobic deep eutectic solvents Liquid-phase microextraction (LPME) Porous ceramic membrane
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4.0
J Chromatogr Ajournal of chromatography a
Metadata
LocationNetherlands
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