Multiresidue determination of (fluoro)quinolone antibiotics in swine kidney using liquid chromatography-tandem mass spectrometry.
New antibiotics were recently developed, among which are the (fluoro)quinolones. This paper presents an analytical method which allows the determination of 11 (fluoro)quinolones in swine kidneys: norfloxacin, ofloxacin, cinoxacin, oxolinic acid, nalidixic acid, flumequine, enrofloxacin, enoxacin, ciprofloxacin, danofloxacin and marbofloxacin. The procedure involves a rapid and efficient pre-treatment by solid-phase extraction (recoveries 83-98%), followed by the sensitive and selective determination of all compounds in a single run using LC-ESI-MS-MS. Multiple reaction monitoring (MRM) was used for selective detection of each (fluoro)quinolone. Quinine was selected as internal standard. The accuracy of the method, expressed as recovery, was between 89 and 109%; the repeatability had a maximum RSD lower than 15%. The limits of detection (LOD) were much lower than the respective Maximum Residue Limits (MRL)/4.
van Vyncht
Géry
G
European Commission, Joint Research Center, Institute for Reference Materials and Measurements Geel, Retieseweg, Belgium.
Jànosi
Amaya
A
Bordin
Guy
G
Toussaint
Brigitte
B
Maghuin-Rogister
Guy
G
De Pauw
Edwin
E
Rodriguez
Adela Rosa
AR
D000818:Animals; D000890:Anti-Infective Agents / Q000032:analysis*; D004350:Drug Residues / Q000032:analysis*; D024841:Fluoroquinolones; D007668:Kidney / Q000737:chemistry*; D012015:Reference Standards; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013552:Swine
D000890:Anti-Infective Agents; D024841:Fluoroquinolones