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Determination of Four Fluoroquinolones Drug Residues in Aquatic Products by Capillary Electrophoresis-Electrochemiluminescence with Modified Gold Nanoparticles Enrichment |
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DOI: |
KeyWord:modified gold nanoparticles enrichment fluoroquinolones drug capillary electrophoresis-electrochemical luminescence(CE-ECL) |
Author | Institution |
CHEN Zong-bao,WANG Xing,YIN Yue-chun,CHEN Guo-nan |
1.Key Laboratory of Applied Organic Chemistry,Higher Institutions of Jiangxi Province,School of Chemistry and Environmental Science,Shangrao Normal University;2.Ministry of Education Key Laboratory of Analysis and Detection for Food Safety,Department of Chemistry, Fuzhou University |
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Abstract: |
A method was established for the determination of 4 fluoroquinolones,ie.ciprofloxacin(CIP),enrofloxacin(EN),ofloxacin(OF) and norfloxacin(NOR) in aquatic products by capillary electrophoresis-electrochemical luminescence(CE-ECL) with modified gold nanoparticle enrichment.The conditions for enrichment and CE separation were studied,and the conditions for ECL detection were also investigated based on the principle of enhanced Ru(bpy)2+3 electrochemiluminescence.Under the optimal conditions,there were good linearities for the 4 analytes enriched with modified gold nanoparticles in the concentration range of 0.05-10.0 μmol/L.The detection limits(S/N=3) were low to 0.02 μmol/L and the enrichment times were 104-127.This method was used in the analysis of 4 analytes in actual eels samples with recoveries of 94.5%-112% and relative standard deviations(RSDs) not more than 6.3%. |
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