期刊
FRONTIERS IN CHEMISTRY
卷 7, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fchem.2019.00594
关键词
deep eutectic solvent; graphene; dispersive micro solid-phase extraction; pyrethroid insecticides; beebread; Curcuma wenyujin and Dendrobium officinale; ultra-high performance liquid chromatography
资金
- Key projects of National Natural Science Foundation of China [81730108]
- Key Project of Zhejiang province Ministry of Science and Technology [2015C03055]
- Key Project of Hangzhou Ministry of Science and Technology [20162013A07]
Deep eutectic solvent micro-functionalized graphene (DES-G) was synthesized and first applied as the adsorbent of dispersive micro solid-phase extraction (DMSPE) to extract five pyrethroid insecticides. In DMSPE, the target analytes were absorbed by DES-G and then desorbed by trace eluent, next, the treated samples were quantified via ultra-high performance liquid chromatography equipped with diode-array detection. A scanning electron microscope, transmission electron microscopy and Fourier transform infrared spectrometer were used to characterize the prepared DES-G. Furthermore, this method was verified under the selected conditions with the precision for retention times ranging from 0.43 to 0.57%, and repeatability ranged from 0.04 to 2.41% for peak areas. The developed method was successfully applied to determine pyrethroid insecticides residues in beebread, Curcuma wenyujin and Dendrobium officinale with the recoveries in the range of 80.9-114.1%.
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