Journal of the Chilean Chemical Society
versión On-line ISSN 0717-9707
BRAVO, FELIPE; GONZALEZ, DIEGO y BENITES, JULIO. DEVELOPMENT AND VALIDATION OF A SOLID-PHASE EXTRACTION GAS CHROMATOGRAPHY-MASS SPECTROMETRY METHOD FOR THE SIMULTANEOUS QUANTIFICATION OF OPIOID DRUGS IN HUMAN WHOLE BLOOD AND PLASMA. J. Chil. Chem. Soc. [online]. 2011, vol.56, n.3, pp.799-802. ISSN 0717-9707. http://dx.doi.org/10.4067/S0717-97072011000300017.
A rapid, selective, sensitive, and specific method is presented to simultaneously quantify morphine, 6-monoacetylmorphine (6-MAM), codeine, heroin, fentanyl, and methadone in human whole blood and plasma. The drugs were extracted with phosphate buffer at pH 6, followed by solid-phase extraction (SPE) and quantification by GC/MS with electron impact ionization using helium as carrier gas. Quantification was performed based on nalorphine as internal standard (IS). The specificity, linearity, intra- and inter-assay precision and accuracy, and extraction recovery were fully evaluated. The limits of detection (LODs) were 0.40 - 7.63 ng/mL for whole blood and 0.80 - 32.00 ng/mL for plasma. The method is fast, simple, and accurate, with the sensitivity and specificity required in forensic and clinical toxicology.
Palabras clave : Opiods; gas chromatography; mass selective detector; solid-phase extraction.