title: Using β-cyclodextrin/attapulgite-immobilized ionic liquid as sorbent in dispersive solid-phase microextraction to detect the benzoylurea insecticide contents of honey and tea beverages.
abstract: A green, simple, inexpensive dispersive solid-phase microextraction method coupled with high-performance liquid chromatography was developed for rapid screening and selective recognition of benzoylurea insecticides (BUs) in honey and tea beverages. A novel adsorbent, ionic liquid (IL)-modified β-cyclodextrin/attapulgite (β-CD/ATP), was prepared by immobilizing IL on the surface of β-CD/ATP. A series of demanding extraction conditions were investigated through the experimental design. Under optimum conditions, the limits of detection for the analytes varied from 0.12 to 0.21 μg L(-1). The enrichment factors ranged from 112 to 150 folds. Linearities in the range of 5-500 ng m L(-1) were achieved for four BUs, while the correlation coefficients ranged from 0.9997 to 1.0000 and the recoveries from 84.5% to 104.7%. The precision of this method for the four BUs corresponded to intra-day and inter-day RSDs% lower than 3.85%. Finally, the proposed technique was applied for the preconcentration of the BUs from real samples with satisfactory results.
authors.affiliation: Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China.
authors.forename: Miyi
authors.initials: M
authors.lastname: Yang
authors.affiliation: Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China.
authors.forename: Xiaoling
authors.initials: X
authors.lastname: Wu
authors.affiliation: Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China.
authors.forename: Xuefei
authors.initials: X
authors.lastname: Xi
authors.affiliation: Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China.
authors.forename: Panjie
authors.initials: P
authors.lastname: Zhang
authors.affiliation: Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China.
authors.forename: Xiaoling
authors.initials: X
authors.lastname: Yang
authors.affiliation: Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China.
authors.forename: Runhua
authors.initials: R
authors.lastname: Lu
authors.affiliation: Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China.
authors.forename: Wenfeng
authors.initials: W
authors.lastname: Zhou
authors.affiliation: Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China.
authors.forename: Sanbing
authors.initials: S
authors.lastname: Zhang
authors.affiliation: Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China. Electronic address: hxgao@cau.edu.cn.
authors.forename: Haixiang
authors.initials: H
authors.lastname: Gao
authors.affiliation: Key Laboratory of Veterinary Pharmaceutical Development of the Ministry of Agriculture, Key Laboratory of New Animal Drug Project of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, Lanzhou 730050, China. Electronic address: lijy1971@163.com.
authors.forename: Jianyong
authors.initials: J
authors.lastname: Li
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods; D006722:Honey / Q000032:analysis*; D007306:Insecticides / Q000032:analysis*; D052578:Ionic Liquids; D057230:Limit of Detection; D017616:Magnesium Compounds; D010671:Phenylurea Compounds / Q000032:analysis*; D017655:Silicon Compounds; D052617:Solid Phase Microextraction / Q000379:methods*; D013662:Tea / Q000737:chemistry*; D047392:beta-Cyclodextrins
chemical_list: D007306:Insecticides; D052578:Ionic Liquids; D017616:Magnesium Compounds; D010671:Phenylurea Compounds; D017655:Silicon Compounds; D013662:Tea; D047392:beta-Cyclodextrins; C031215:betadex; C026325:attapulgite
keywords: Attapulgite; Attapulgite (PubChem CID: 56842194); Benzoylurea insecticides; Chlorfluazuron (PubChem CID: 91708); Dispersive solid-phase microextraction; Flufenoxuron (PubChem CID: 91766); Hexaflumuron (PubChem CID: 91741); High-performance liquid chromatography; Ionic liquid; Lufenuron (PubChem CID: 71777); Plackett–Burman design; β-Cyclodextrin (PubChem CID: 444041)