Abstract
The determination of lorazepam in blood by gas chromatography/mass spectrometry with selected ion monitoring (GC/MS/SIM) in the negative chemical ionization mode (NICI) was investigated. The method involves a single extraction with Amberlite XAD-2 resin and the use of [2H6]triazolam as an internal standard. The limit of detection is 0.5 ng/mL and standard curves are linear from 6.25 to 250 ng/mL. The applicability of the method to forensic toxicology is reported.
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