Multiple Assignment Recovered Analysis (MARA) NMR for a Direct Food Labeling: the Case Study of Olive Oils
The multiple assignment recovered analysis (MARA) on nuclear magnetic resonance (NMR) spectra is here presented with the aim to provide the quantitative label of chemical mixtures such as foodstuff. The method takes advantage from the multiple NMR signals generated by any chemical; these will be all proportional to the concentration of the parent compound. In a well-known system, the selection of many integration regions enables the development of simple relationships fulfilled just by specific quantitative values of the expected components.