The invention provides a kit for detecting anti-
depressant drugs in serum and
plasma by liquid
chromatography tandem mass spectrometry. The kit comprises
drug standard substances,
drug internal
standardization compounds,
drug extraction compositions, negative
plasma and a
diluent. The drug standard substances comprise amfebutamone, oxybupropion,
citalopram,
Escitalopram,
venlafaxine, O-desmethylvenlafaxine,
duloxetine,
fluoxetine, norfloxetine, fluvoxamine,
mirtazapine,
paroxetine,
sertraline and trazodone. The drug internal
standardization compounds comprise amfebutamone-d9, oxybupropion-d6,
citalopram-d6,
venlafaxine-d6, O-desmethylvenlafaxine-d6,
duloxetine-d3,
fluoxetine-d6, norfloxetine-d6, fluvoxamine-d4,
mirtazapine-d3,
paroxetine-d6,
sertraline-d3 and trazodone-d6. The
drug extraction compositions comprise, by volume, 60% of
methanol solution, 20% of
acetonitrile solution, 10% of
isopropyl alcohol solution and 10% of
purified water. The
diluent comprises 50 % of
methanol waterfluid. The kit can be used for simultaneous detection of the anti-
depressant drugs and active metabolites, the detection time is short, and flux is high.