ABSTRACT
The purpose of this study was to examine the impact of 59 novel psychoactive compounds on common enzyme-linked immunosorbent assay (ELISA) testing kits. Concentrations above and below the individual kit reporting limits in each class were measured. Compounds that exhibited cross-reactivity were then spiked individually using a seven-point response curve to determine the level of cross-reactivity. Diclazepam, delorazepam, phenazepam, flualprazolam, bromazolam, adinazolam, 3-methoxy-PCP, 3-hydroxy-PCP (3-OH-PCP), phenylfentanyl, para-methylacetylfentanyl and para-fluorofuranylfentanyl were determined to cross-react in the respective kits below. Herein, we detail the cross-reactivity that was observed with the above novel psychoactive substances on Immunalysis Benzodiazepine (BEN), Phencyclidine (PCP), Fentanyl (FEN), Buprenorphine (BUP), Opiates (OPI) and Oxycodone (OXY) Direct ELISA kits.
