Determination of Ciprofloxacin in Human Plasma and Urine by Precolumn Derivatization High Performance Liquid Chromatography with Fluorescence Detection.pdfVIP
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Determination of Ciprofloxacin in Human Plasma and Urine by Precolumn Derivatization High Performance Liquid Chromatography with Fluorescence Detection.pdf
FULLPAPE
DeterminationofCiprOfIoxaCininHumanPlasmaandUrineby
PrecolumnDerivatizationHighPerformanceLiquid
ChromatographywithFluorescenceDetection
Ulu,SevgiTatar
DepartmentofAnalyticalChemistry,FacultyofPharmacy,Universiytoflstanbul,34416Istanbul,Turkey
Asensitive,simpleandselectivehigh—performanceliquidchromatographic(HPLC)methodwasdevelopedfor
htedeterminationofciprofloxacin inbiologicalfluids.Themethodisbasedonhtereactionbetweenhtedrugand
4一chloro一7一nitrobenzofurazan(NBD—C1)inboratebufferofpH9.0toyieldahighlyfluorescentderivativethatis
measuredat535nm afterexcitationat464nm.Thecalibrationcurveswerelinearovertheconcentrationrangesof
25— 3000and50— 3000ng.mL ofrplasmaandurine,respectively.Themeanrecoveryofciprofloxacinfrom
plasmaandurinewas98.37% and98.40%.respectively.Themethodwasfoundtobesensitive,precise.accurate,
nadreproducible.A11ofmevalidationparameterswerewimintheacceptancerange.
Keywords high—performanceliquid chromatographic (HPLC),ciprofloxacin,derivatization,4一chloro一7一nitro—
benzofurazan,validation,biologicalfluids
Introduction Experimental
FluOrOauin0l0nes exhibit concentration—dependent Materials
bactericidalactivityby inhibitingtheactivityofDNA
CIPwassuppliedfrom FlukafBuchs.Switzerland).
gyraseandtopoisomerase,enzymesessentialforbacte— Mexiletine(IS)wassuppliedfrom Sigma(St.Louis,
rialDNAreplication.Ciprofloxacinhydrochloride(CIP. M0.USA1.NBD—CInadallotherreagentsemployed
Figurel1chemicallydesignated1一cyclopropy1.6一fluoro一
wereofanalyticalgradefrom MerckfDarmstadt,Ger—
4.OXO一7.piperazin.1.y1.quinoline.3.carboxylic acid
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