One-pot preparation of an acryloyled β-cyclodextrin-silica hybrid monolithic column and its application for determination of carbendazim and carbaryl. (15th December 2018)

• Record Type: Journal Article
• Authors: Chen, Ling; Li, Ming; Ai, Youhong; Dang, Xueping; Huang, Jianlin; Chen, Huaixia
• Is Part Of: Food chemistry. Volume 269(2018)
• Page Start: 181
• Page End: 186
• Publication Date: 2018-12-15
• Subjects: Carbendazim (PubChem CID: 25429) -- Carbaryl (PubChem CID: 6129) -- 3-Methacryloxypropyltrimethoxysilane (PubChem CID: 17318) -- β-CD (PubChem CID: 4440410) -- Acrylyl chloride (PubChem CID: 13528) -- Methyltrimethoxysilane (PubChem CID: 14456) -- 2, 2-Azobisisobutyronitrile (PubChem CID: 6547) -- Ethylene Glycol Dimethacrylate (PubChem CID: 7355) -- N, N-Dimethylformamide (PubChem CID: 6228) -- Acetone (PubChem CID: 180); Acryloyled β-CD-silica hybrid monolithic column -- Aqueous-phase synthesis -- Solid phase microextraction -- Carbendazim -- Carbaryl; Food -- Analysis -- Periodicals; Food -- Composition -- Periodicals; 664
• DOI: 10.1016/j.foodchem.2018.07.006
• Languages: English
• ISSNs: 0308-8146

Abstract

Highlights: Acryloyled β -cyclodextrin hybrid monolith was synthesized under aqueous-phase conditions. The monolith was used for solid-phase microextraction of carbendazim and carbaryl. The limits of detection were 1.0 and 1.5 μg/kg for analytes in vegetable, respectively. Abstract: This work describes, for the first time, an acryloyled β -cyclodextrin hybrid monolith column was synthesized, under aqueous-phase conditions, and used for solid-phase microextraction of carbendazim and carbaryl. The monolithic column was characterized using scanning electron microscopy, nitrogen adsorption–desorption, thermogravimetric analysis and Fourier transform infrared spectroscopy, and used as the adsorbent for solid phase microextraction (SPME) of carbendazim and carbaryl. After optimization of the SPME conditions, a simple and sensitive SPME-HPLC method was developed for the determination of carbendazim and carbaryl in leafy vegetables. The method exhibited a good liner response in the range 5–400 μg/kg (R 2 = 0.9994) for carbendazim and 10–400 μg/kg (R 2 = 0.9996) for carbaryl, respectively. The limits of detection were 1.0 and 1.5 μg/kg for carbendazim and carbaryl, respectively, in leafy vegetables. Recoveries ranged from 92.6% to 110.1%, and the relative standard deviations were less than 6.1%.