New synthetic opioids in biological and non-biological matrices: AÂ review of current analytical methods
Keywords: تبدیل فوریه مادون قرمز; Illicit fentanyl; Fentanyl analogue; Analytical methods; 4-ANPP; 4-anilino-N-phenethylpiperidine or despropionyl fentanyl; DUID; driving under the influence of drugs; FTIR; Fourier transform infrared; GC-MS; gas chromatography-mass spectrometry; GC-