Synergetic dual recognition and separation of the fungicide carbendazim by using magnetic nanoparticles carrying a molecularly imprinted polymer and immobilized β-cyclodextrin
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- 作者：Shuhuai Li ; Xuejin Wu ; Qun Zhang ; Pingping Li
- 关键词：Benzimidazole carbamate ; Scanning electron microscopy ; Zeta potential ; X ; ray diffraction ; FTIR ; X ; ray photoelectron spectroscopy ; Solid ; phase extraction ; Gold nanoparticles
- 刊名：Microchimica Acta
- 出版年：2016
- 出版时间：April 2016
- 年：2016
- 卷：183
- 期：4
- 页码：1433-1439
- 全文大小：513 KB
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Xuejin Wu (1) (2)
Qun Zhang (1) (2)
Pingping Li (1) (2)
1. Analysis and Test Center of Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China
2. Hainan Provincial Key Laboratory of Quality and Safety for Tropical Fruits and Vegetables, Haikou, 571101, China - 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Analytical Chemistry
Inorganic Chemistry
Physical Chemistry
Characterization and Evaluation Materials
Monitoring, Environmental Analysis and Environmental Ecotoxicology - 出版者：Springer Wien
- ISSN：1436-5073
文摘
The authors describe a nanomaterial for solid-phase extraction of carbendazim. Magnetic molecularly imprinted polymer nanoparticles (mag-MIP-NPs) were obtained by immobilizing the MIP and a thiolated β-cyclodextrin on the surface of magnetite (Fe3O4) nanoparticles coated with gold nanoparticles. Both the recognition sites of the MIP and the hydrophobic cavities in the β-cyclodextrin contribute to the specific molecular recognition and extraction of carbendazim. The mag-MIP-NPs have an apparent adsorption capacity of 190 mg⋅g‾1. Spiked vegetables were analyzed by using this material for extraction of carbendazim prior to its determination by ultra performance liquid chromatography (UHPLC). Recoveries range from 90.5 % to 109 %, and the detection limit is 3.0 pg⋅mL‾1.