Analytical and bioanalytical chemistry, 405(1), 331-340 (2012-10-16)
We have developed a simple and sensitive method for the simultaneous determination of testosterone (TES), cortisol (CRT), and dehydroepiandrosterone (DHEA) in saliva by automated online in-tube solid-phase microextraction (SPME) coupled with liquid chromatography-tandem mass spectrometry (LC-MS/MS) using a Discovery HS
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 879(32), 3845-3852 (2011-11-22)
New bioanalytical SPE-HPLC-PDA-FL method for the determination of the neuroleptic drug tiapride and its N-desethyl metabolite was developed, validated and applied to xenobiochemical and pharmacokinetic studies in humans and animals. The sample preparation process involved solid-phase extraction of diluted plasma
Journal of pharmaceutical and biomedical analysis, 43(3), 937-944 (2006-11-03)
The drug primaquine diphosphate is used for causative treatment of malaria. Using HPLC-MS and GC-MS, this research group was previously able to show that the main contaminant of primaquine is the positional isomer quinocide [I. Brondz, D. Mantzilas, U. Klein
Journal of chromatography. A, 1165(1-2), 58-66 (2007-08-07)
In this study, the chromatographic performance of a pentafluorophenylpropyl (PFPP) stationary phase was evaluated for the rapid separation of phenethylamine alkaloids (i.e. (+/-)-octopamine, (+/-)-synephrine, tyramine, N-methyltyramine and hordenine) in Citrus aurantium plant material (fruits and peel), various Citrus species, extracts
Journal of pharmaceutical and biomedical analysis, 48(2), 254-263 (2007-12-14)
In this study a pentafluorophenylpropyl (PFPP) stationary phase was applied to the fast and reliable qualitative and quantitative analysis of ephedrine alkaloids in Ephedra plant material and derivatives. A Discovery HS F5 column (150mmx4.6mm i.d., 5microm) was used, with an
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