What's more, the alerts presumed being derived from small compound besides 1V-LSD had been also noticed from the 1H-NMR and 13C-NMR spectra. This small compound was believed to become isoLC–PDA–MS Evaluation 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 fT