Identification of phencyclidine and its analogues at low concentrations in urine by selected ion monitoring.

This paper presents retention behavior and mass spectra of eluting peaks for twelve phenyl and thienyl analogues of phencyclidine (PCP) as well as PCP itself. An on-column decomposition product common to all thienyl analogues is described. Finally, a practical analytical procedure is given for the detection and identification of these compounds in low (under 5 ng/mL) concentrations in urine.