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Fe 3 O 4 nanoparticles coated with polyhedral oligomeric silsesquioxanes and β-cyclodextrin for magnetic solid-phase extraction of carbaryl and carbofuran.

Authors :
Ma Q
Liu X
Zhang Y
Chen L
Dang X
Ai Y
Chen H
Source :
Journal of separation science [J Sep Sci] 2020 Apr; Vol. 43 (8), pp. 1514-1522. Date of Electronic Publication: 2020 Apr 02.
Publication Year :
2020

Abstract

In this study, porous sandwich structure Fe <subscript>3</subscript> O <subscript>4</subscript> nanoparticles coated by polyhedral oligomeric silsesquioxanes and β-cyclodextrin were prepared by surface polymerization and were used as the magnetic solid phase extraction adsorbent for the extraction and determination of carbaryl and carbofuran. The Fe <subscript>3</subscript> O <subscript>4</subscript> nanoparticles coated with polyhedral oligomeric silsesquioxanes and β-cyclodextrin were characterized by Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis, vibrating sample magnetometry, and scanning electron microscopy. After optimizing the extraction conditions, a method that combined magnetic solid phase extraction with high-performance liquid chromatography was developed for the determination of carbaryl and carbofuran in apple. The method exhibited a good linearity in the range of 2-400 μg/kg for carbaryl and carbofuran (R <superscript>2 </superscript> = 0.9995), respectively. The limits of detection were 0.5 μg/kg of carbaryl and 0.7 μg/kg for carbofuran in apple, respectively. Extraction recoveries ranged from 94.2 to 103.1% with the preconcentration factor of 300 and the relative standard deviations were less than 5.9%. These results indicated that the method combined magnetic solid phase extraction with high-performance liquid chromatography and was promising for the determination of carbaryl and carbofuran at trace amounts.<br /> (© 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)

Details

Language :
English
ISSN :
1615-9314
Volume :
43
Issue :
8
Database :
MEDLINE
Journal :
Journal of separation science
Publication Type :
Academic Journal
Accession number :
31984639
Full Text :
https://doi.org/10.1002/jssc.201900896