title: Molecularly imprinted-matrix solid-phase dispersion for selective extraction of five fluoroquinolones in eggs and tissue.
abstract: A novel highly selective sample cleanup procedure combining molecular imprinting and matrix solid-phase dispersion (MI-MSPD) was developed for the simultaneous isolation of ofloxacin, pefloxacin, norflorxacin, ciprofloxacin, and enrofloxacin in chicken eggs and swine tissues followed by high-performance liquid chromatography with fluorescence detection. The novel ofloxacin imprinted polymers synthesized in water-containing systems show high selectivity for the five fluoroquinolones in aqueous environment and the affinity can be easily adjusted by the pH of solution. Compared with conventional MSPD methods, using MIPs as selective MSPD sorbents, the five fluoroquinolones could be selectively extracted from a biological matrix and all matrix interferences were eliminated simultaneously. The average recoveries of the five fluoroquinolones were ranged from 85.7 to 104.6% for eggs and 86.8 to 102.7% for tissues with relative standard deviations of less than 7.0%. Detection limits for the identification of the five fluoroquinolones in eggs and tissues ranged from 0.05 to 0.09 ng/g.
authors.affiliation: Department of Chemical Engineering, Inha University, Incheon, 402751, Korea.
authors.forename: Hongyuan
authors.initials: H
authors.lastname: Yan
authors.forename: Fengxia
authors.initials: F
authors.lastname: Qiao
authors.forename: Kyung Ho
authors.initials: KH
authors.lastname: Row
mesh_terms: D000818:Animals; D002645:Chickens; D004531:Eggs / Q000032:analysis; D024841:Fluoroquinolones / Q000032:analysis*; D006863:Hydrogen-Ion Concentration; D015394:Molecular Structure; D009132:Muscles / Q000737:chemistry*; D010316:Particle Size; D011108:Polymers / Q000138:chemical synthesis / Q000737:chemistry; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D052616:Solid Phase Extraction / Q000379:methods*; D013552:Swine; D014867:Water / Q000737:chemistry
chemical_list: D024841:Fluoroquinolones; D011108:Polymers; D014867:Water