Comparison between the efficacy of two cleanup methods for the 1H NMR analysis of food samples contaminated with Cypermethrin

This work aimed to study the use of 1H NMR for the identification of cypermethrin in cooked foods. 1H NMR is not commonly used in these cases, because food samples ready for consumption have complex substances, mainly lipids, which usually interfere with the identification of cypermethrin. Thus, we drew a comparison between the most applied method for the treatment of those samples and an alternative route that made possible the use of 1H NMR in the identification of cypermethrin in a matrix consisting of rice, bean, and chicken, which allows the Forensic work for such cases.(author)