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Simultaneous determination of HFBA-derivatized amphetamines and ketamines in urine by gas chromatography-mass spectrometry.
TLDR
With this new approach, an extraction, derivatization and gas chromatographic-mass spectrometric analysis method was developed, it was able to use a single analytical protocol to conduct the confirmation test for samples that preliminarily tested positive (by immunoassay) for amphetamines, ketamine, or both. Expand
Simultaneous quantification of urine flunitrazepam, nimetazepam and nitrazepam by using liquid chromatography tandem mass spectrometry.
TLDR
The LC-MS/MS method has proved to be robust and specific for the quantification of FM2, nimetazepam and nitrazepam in urine samples and confirmed that nitrazpeam and 7-aminonimetazpeam are the metabolic products of nimetzepam. Expand
Simultaneous drug identification in urine of sexual assault victims by using liquid chromatography tandem mass spectrometry.
TLDR
The most common drug identified is flunitrazepam, followed by nimetazepam and ketamine, and some new psychoactive substances, such as 2C-B, mephedrone, methylone, PMA and PMMA were also identified. Expand