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Vortex‐assisted Emulsification Microextraction for the Determination of Pyrethroids in Mushroom
Author(s) -
Zhao Wenfei,
Jing Xu,
Chang Mingchang,
Meng Junlong,
Feng Cuiping
Publication year - 2019
Publication title -
bulletin of the korean chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.237
H-Index - 59
ISSN - 1229-5949
DOI - 10.1002/bkcs.11850
Subject(s) - lentinula , chemistry , mushroom , agaricus bisporus , solvent , flammulina , chromatography , dodecanol , extraction (chemistry) , detection limit , food science , organic chemistry
In this research, a novel method—namely vortex‐assisted emulsification microextraction—was introduced for the determination of pyrethroids (flucythrinate, beta‐cypermethrin, and fenvalerate) in mushrooms ( Agaricus bisporus , Lentinula edodes , Auricularia auricular , and Flammulina velutiper ). A green solvent 1‐dodecanol was used as the extraction solvent. The low freezing point makes 1‐dodecanol easy to solidify and separate after retention in an ice bath. To avoid the use of dispersion solvents, vortex agitation was applied instead to increase the contact area between extraction solvent and samples. The type and volume of extraction solvent, time of extraction, and addition of sodium chloride were optimized. Under optimal conditions, linear responses were obtained within 1–100 μg/g ( R 2 ≥ 0.999). The extraction recovery was within 70.2–89.2% with relative standard deviations of less than 8.1%. This method was simple, fast, and environmentally friendly, and was successfully applied to extract and analyze pyrethroids in Agaricus bisporus , Lentinula edodes , Auricularia auricular , and Flammulina velutiper .