Qualitative confirmation of 30 phencyclidine analogs in human blood and urine using GC-HRMS and a self-built library search.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences February 1, 2025 Zixuan Song, Zhenshuo Guo, Yiling Tang et al. 1 citation
A new high-throughput screening method using gas chromatography–high-resolution mass spectrometry (GC-HRMS) identifies 30 phencyclidine analogs in human blood and urine. After a simple extraction with ethyl ether and buffer, analytes are identified using a self-built library and reference spectra; isomers are differentiated by exact molecular mass and retention time. The method shows no interferences, recovery ranges from 30% to 123%, and detection limits from 0.05 to 5 ng/mL. Applied to 800 authentic forensic cases, it detected four analogs—2-F-2-oxo-PCE, 3-MeO-PCE, O-PCE, and 2-FDCK—demonstrating suitability for sensitive, fast high-throughput drug screening.