LC–PDA–MS analysis of sheet B; PDA chromatogram a, TIC b, and UV spectra of peak 2 c and of peak 2b d, and ESI mass spectra of peak two e and of peak 2b fileFlurazepam is usually a drug with potential for misuse. Two types of drug misuse can take place, both leisure misuse wherever the drug is taken to achieve a higher, or once the drug is cont