SERS Spectrum 5F AKB48 SERSitive: Accurate SERS Substrates 19 F and 1 H quantitative NMR spectroscopic analysis of fluorinated third generation synthetic cannabinoids Analytical Methods (RSC Publishing) DOI:10.1039 C9AY00814D Isolation, detection and identification of synthetic cannabinoids in alternative formulations or dosage forms ScienceDirect Analytical evidence to show letters impregnated with novel psychoactive substances are a means of getting drugs to inmates within the UK prison service Loretta T Ford, Jonathan D Berg, 2018 5F APINACA, 5F AKB48