Abstract
A method for the determination of the antidepressant drug trazodone is presented. 8-Hydroxyloxapine is used as the internal standard. A simple solid-phase extraction procedure utilizing disposable reversed-phase C18 columns is described. Samples are analyzed by gas chromatography with nitrogen-selective detection using a wide-bore capillary column with a permanently bonded, nonpolar stationary phase. The assay possesses linearity to 3.0 micrograms/mL, sensitivity to at least 0.25 microgram/mL, recovery averaging 96%, and between-run precision reflected by a CV of 5.6%. We conclude that the method reported here is ideally suited for monitoring therapeutic and toxic levels of trazodone.
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