title: β-CD/ATP composite materials for use in dispersive solid-phase extraction to measure (fluoro)quinolone antibiotics in honey samples.
abstract: A novel sorbent (β-CD/ATP composite) for dispersive solid-phase extraction (d-SPE) prepared by bonding β-cyclodextrin to modified attapulgite via silane coupling was used to determine the concentrations of four (fluoro)quinolones (Qs) in honey samples. The subsequent quantification of the Qs (ciprofloxacin, norfloxacin, ofloxacin, and gatifloxacin) was accomplished using high-performance liquid chromatography (HPLC) with ultraviolet detection after the d-SPE procedure. Parameters that may influence the extraction efficiency, such as type and volume of the eluent, type and amount of the sorbent, times of the vortex and sonication process, and pH of the sample, were investigated using batch and column procedures. The optimal experimental conditions (5 mL sample at pH 3, 4 mg of β-CD/ATP composite as the sorbent, 200 μL of 40% ammonia in methanol as the eluent, with vortex time 60s and sonication time 6 min, and no addition of salt) were obtained from this statistical evaluation. The limits of detection (LODs) were determined to the range from 0.30 to 3.95 μg L(-1). Good recoveries (83.6-88.6%) were obtained under the optimum conditions, and the relative standard deviations (RSDs), which are used to indicate reproducibility, were less than 7.4%. The method was validated with three real honey samples, and the results demonstrated that β-CD/ATP composite possessed a high adsorption capacity for Qs. Although the LODs were slightly higher than expected, this study confirmed the possibility of using cyclodextrin grafted palygorskite in analytical applications.
authors.affiliation: Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100194, China.
authors.forename: Xiangqian
authors.initials: X
authors.lastname: Cui
authors.affiliation: Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100194, 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 100194, 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 100194, 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 100194, 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 100194, China.
authors.forename: Sanbin
authors.initials: S
authors.lastname: Zhang
authors.affiliation: Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100194, China.
authors.forename: Haixiang
authors.initials: H
authors.lastname: Gao
authors.affiliation: Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100194, China. Electronic address: rhlu@cau.edu.cn.
authors.forename: Runhua
authors.initials: R
authors.lastname: Lu
mesh_terms: D000327:Adsorption; D000900:Anti-Bacterial Agents / Q000302:isolation & purification*; D002851:Chromatography, High Pressure Liquid / Q000379:methods; D054879:Halogenation; D006722:Honey / Q000032:analysis*; D057230:Limit of Detection; D017616:Magnesium Compounds / Q000737:chemistry*; D015363:Quinolones / Q000302:isolation & purification*; D015203:Reproducibility of Results; D017655:Silicon Compounds / Q000737:chemistry*; D052616:Solid Phase Extraction / Q000379:methods*; D047392:beta-Cyclodextrins / Q000737:chemistry*
chemical_list: D000900:Anti-Bacterial Agents; D017616:Magnesium Compounds; D015363:Quinolones; D017655:Silicon Compounds; D047392:beta-Cyclodextrins; C031215:betadex; C026325:attapulgite
keywords: (Fluoro)quinolone antibiotics; Dispersive solid-phase extraction; Honey samples; β-CD/ATP composite