Abstract
For fast and reliable screening, identification, and quantification of as many analytes as possible, multi-analyte approaches are very useful in clinical and forensic toxicology. Using ultra high performance liquid chromatography-tandem mass spectrometry, such an approach has been developed for blood plasma analysis after simple liquid–liquid extraction. In the present paper, validation and application is described for 31 neuroleptics, 28 benzodiazepines, and Z-drugs (zaleplone, zolpidem, and zopiclone). The validation parameters included recovery, matrix effects, process efficiency, ion suppression/enhancement of co-eluting analytes, selectivity, crosstalk, accuracy and precision, stabilities, and limits of quantification and detection. The results showed that the approach was selective, sensitive, accurate, and precise for 24 neuroleptics and 21 benzodiazepines and Z-drugs. The remaining analytes were unstable and/or too low dosed. Cost- and time-saving one-point calibration was applicable only for half of the analytes. The applicability was successfully shown for most of the drugs by analyzing authentic plasma samples and external quality control samples.
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Acknowledgements
The authors thank Andrea E. Schwaninger, Gabi Ulrich, Carsten Schröder, and Armin A. Weber for their helpful discussions as well as Kornelia Weidemann and Dr. Edeltraud Thiry, ThermoFisher Scientific, Scientific Instruments, Dreieich (Germany) for their support.
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Remane, D., Meyer, M.R., Wissenbach, D.K. et al. Ultra high performance liquid chromatographic-tandem mass spectrometric multi-analyte procedure for target screening and quantification in human blood plasma: validation and application for 31 neuroleptics, 28 benzodiazepines, and Z-drugs. Anal Bioanal Chem 401, 1341–1352 (2011). https://doi.org/10.1007/s00216-011-5187-9
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DOI: https://doi.org/10.1007/s00216-011-5187-9