Pipette tip solid-phase extraction and gas chromatography – mass spectrometry for the determination of methamphetamine and amphetamine in human whole blood

Abstract  Methamphetamine and amphetamine were extracted from human whole blood samples using pipette tip solid-phase extraction (SPE) with MonoTip C18 tips, on which C18-bonded monolithic silica gel was fixed. Human whole blood (0.1&nbs