Determination of tramadol and metabolites by HPLC-FL and HPLC-MS/MS in urine of dogs

被引:43
作者
Saccomanni, G. [2 ]
Del Carlo, S. [2 ]
Giorgi, M. [1 ]
Manera, C. [2 ]
Saba, A. [3 ]
Macchia, M. [2 ]
机构
[1] Univ Pisa, Dept Vet Clin, I-56010 Pisa, Italy
[2] Univ Pisa, Dept Pharmaceut Sci, I-56126 Pisa, Italy
[3] Univ Pisa, Dept Chem & Ind Chem, I-56126 Pisa, Italy
关键词
Tramadol; Metabolites; Urine; HPLC-FL; HPLC-MS/MS; O-DESMETHYLTRAMADOL; ANALGESIC DRUG; HUMAN PLASMA; PHARMACOKINETICS; CHROMATOGRAPHY; HYDROCHLORIDE; M1; M5; M2;
D O I
10.1016/j.jpba.2010.03.016
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Tramadol is a centrally acting analgesic drug used in veterinary and human clinical practice. Its metabolism has been largely characterized in human being but is still long to be comprehended in several animal species, especially in the dog. The aim of the present study was to develop and validate a new analytical procedure to investigate HPLC the metabolization/elimination process tramadol in urine of dogs by HPLC-FL or HPLC-MS/MS. A single oral dose of tramadol (4 mg/kg) was administered to 4 male Beagle dogs and the urine was naturally collected. This matrix either hydrolyzed than un-hydrolyzed was extracted with different blends of solvents to detect the total or free form of the analytes, respectively. The present method allowed to obtain good selectivity, accuracy, precision and recoveries without the need of time consuming or expensive clean up steps. The short chromatographic time courses allowed this analysis to be proposed for routine purposes. The HPLC-MS/MS detected in the urine two metabolites (M6 and M7) considered negligible in humans. The low LOQ showed that the method could be useful for the determination of the illegal use of this drug in race-dogs' urine. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:194 / 199
页数:6
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