Screening of citalopram, fluoxetine and their metabolites in human urine by gas chromatography-mass spectrometry. A global robustness/ruggedness study.
2006
Berzas Nevado, Juan José | Villaseñor Llerena, María Jesús | Guiberteau Cabanillas, Carmen | Rodríguez Robledo, Virginia
Capillary gas chromatography with mass spectrometry detection in SIM mode (GC–MS-SIM) has been used for the analysis of citalopram (CIT), fluoxetine (FLX), and all of their metabolites in urine samples. The instrumental parameters affecting GC separation and MS-SIM detection were investigated. A validation procedure was performed on urine matrix and a simultaneous robustness/ruggedness evaluation is also presented in this paper. An optimized solid-phase extraction (SPE) has been applied, reaching in this way to limits of detection (LODs) between 0.7 ng L-1 (CIT) and 33.6 µg L-1 (CIT-PA). A pharmacokinetic screening in clinical urine samples has been also carried out.
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