Influence of mobile phase composition on the high-performance liquid chromatographic/electrospray ionization mass spectrometric analysis of 11-nor-9-carboxy-delta9-tetrahydrocannabinol (THC-COOH) and its glucuronide in urine
1. Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland;2. Department of Forensic Medicine, Karol Marcinkowski University of Medical Sciences, Świȩcickiego 6, 60-780 Poznań, Poland