A highly sensitive ion monitoring method for the determination of valproic acid in saliva and
in serum has been developed based on the gas chromatographic—mass spectrometric …

A GLC‐mass spectrometric method for scopolamine, sensitive to 50 pg/ml for a 4‐ml plasma
or urine sample, was developed. The method used a deuterated internal standard to …

A sensitive solid‐phase extraction/high‐performance liquid chromatographic method with
ultraviolet detection was established for the analysis of salvianolic acid B in rabbit plasma …

A selective and sensitive gas chromatographic method for simultaneous determination of
sulfinpyrazone and two of its metabolites (the para-hydroxylated metabolite and the sulfone …

Abstract Urinary excretion of salsolinol (6, 7-dihydroxy-1-methyl-1, 2, 3, 4-
tetrahydroisoquinoline) in 30 male alcoholic patients during the withdrawal period was …

A sensitive and specific liquid chromatography–electrospray ionization-mass spectrometry
(LC–ESI-MS) method has been developed and validated for the identification and …

A new method for the analysis of tetrahydroisoquinolines (TIQ) from biological materials is
described. The method combines extraction and acylation of the TIQs from urine in a one …

A quantitative method has been developed for valproic acid and twelve of its metabolites
using capillary gas chromatography—mass spectrometry with selected-ion monitoring. The …

Dopamine (DA) condenses, at least in vitro, with acetaldehyde, the primary metabolite of
ethanol, to form the regioisomers salsolinol (SAL) and isosalsolinol (isoSAL). An alternative …

A chromatographic procedure was devised for the quantitative determination of the
enantiomers of salsolinol and N-methylsalsolinol, which are biologically important alkaloids …