PMID- 23483353 OWN - NLM STAT- MEDLINE DCOM- 20140204 LR - 20211021 IS - 1573-4994 (Electronic) IS - 1053-0509 (Linking) VI - 23 IP - 4 DP - 2013 Jul TI - Spectrofluorimetric determination of fluoroquinolones in honey with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone in the presence of beta-cyclodextrin. PG - 713-23 LID - 10.1007/s10895-013-1166-1 [doi] AB - A simple and sensitive spectrofluorimetric method was developed for the determination of four fluoroquinolone antibacterials namely norfloxacin (NOR), ofloxacin (OFL), ciprofloxacin (CIP) and gatifloxacin (GAT) in honey through charge transfer (CT) complex formation with 2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (DDQ), and then the inclusion complexes of FQs-DDQ with beta-cyclodextrin (beta-CD) were formed, which resulted in drastic fluorescence enhancement. The effect of several parameters including the concentration of reactants, reaction temperature, time and ultrasonic treatment on the efficiency of the proposed method involving CT reaction and inclusion interaction was systematically investigated. Under the optimum conditions, the limits of detection (LODs) for four FQs in honey varied from 11.6 to 15.4 mug/kg (signal-to-noise ratio (S/N) = 3). The intra- and interday relative standard deviations (RSDs) were 1.6-4.0 % (n = 5) for four FQs. The calibration graph was linear from 42.8 to 1346.8 mug/kg with correlation coefficients not less than 0.9905. The recoveries of four FQs at three different spiked concentrations in honey samples ranged from 80.9 % to 92.8 %. The results indicated that the method was successfully applied for analyzing FQs in honey. FAU - Xia, Qinghai AU - Xia Q AD - Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, People's Republic of China. FAU - Yang, Yaling AU - Yang Y FAU - Liu, Mousheng AU - Liu M LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130313 PL - Netherlands TA - J Fluoresc JT - Journal of fluorescence JID - 9201341 RN - 0 (Benzoquinones) RN - 0 (Fluoroquinolones) RN - 0 (beta-Cyclodextrins) RN - 1H5KD39UH7 (dichlorodicyanobenzoquinone) SB - IM MH - Benzoquinones/*chemistry MH - Drug Residues/analysis/chemistry MH - Electron Transport MH - Fluoroquinolones/*analysis/*chemistry MH - Honey/*analysis MH - Linear Models MH - Spectrometry, Fluorescence MH - Temperature MH - Time Factors MH - Ultrasonics MH - beta-Cyclodextrins/*chemistry EDAT- 2013/03/14 06:00 MHDA- 2014/02/05 06:00 CRDT- 2013/03/14 06:00 PHST- 2012/08/25 00:00 [received] PHST- 2013/01/31 00:00 [accepted] PHST- 2013/03/14 06:00 [entrez] PHST- 2013/03/14 06:00 [pubmed] PHST- 2014/02/05 06:00 [medline] AID - 10.1007/s10895-013-1166-1 [doi] PST - ppublish SO - J Fluoresc. 2013 Jul;23(4):713-23. doi: 10.1007/s10895-013-1166-1. Epub 2013 Mar 13.