LC–PDA–MS Investigation of sheet B; PDA chromatogram a, TIC b, and UV spectra of peak two c and of peak 2b d, and ESI mass spectra of peak two e and of peak 2b fileIn the situation in issue, a glass pipe and lumps of substance had been discovered close to the system that exposed the presence of 5F-MDMB-PICA and 4F-MDMB-BINACA. This considerably