Simultaneous determination of imipramine and its metabolite desipramine in human plasma by capillary gas chromatography with mass-selective detection

Journal of Chromatography. B, Biomedical Sciences and Applications
F PommierJ Godbillon

Abstract

An analytical method for the simultaneous determination of imipramine (IMI) and its N-desmethyl metabolite, desipramine (DIMI) in human plasma by capillary gas chromatography-mass selective detection (GC-MS), with D4-imipramine (D4-IMI) and D4-desipramine (D4-DIMI) as internal standards, was developed and validated. After addition of the internal standards, the compounds were extracted from plasma at basic pH into n-heptane-isoamyl alcohol (99:1, v/v), back-extracted into acidic aqueous solution and re-extracted at basic pH into toluene. Desipramine and D4-desipramine were converted into their pentafluoropropionyl derivatives. The compounds were determined by gas chromatography using a mass selective detector at m/z 234 for IMI, m/z 238 for D4-IMI, m/z 412 for DIMI and m/z 416 for D4-DIMI. The method was applied to clinical samples.

References

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Citations

Nov 11, 2003·Clinical Pharmacokinetics·David R P Guay
Dec 24, 2010·Bioanalysis·Mohammad N UddinIoannis N Papadoyannis
Jul 13, 2007·Journal of Separation Science·Victoria F SamanidouIoannis N Papadoyannis
Aug 23, 2011·European Journal of Pharmaceutical Sciences : Official Journal of the European Federation for Pharmaceutical Sciences·Jakob JornilKristian Linnet
Feb 23, 2008·Critical Reviews in Clinical Laboratory Sciences·Sarah M R WilleWilly E E Lambert

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