1. Prog Nucl Magn Reson Spectrosc. 2020 Oct-Dec;120-121:1-24. doi: 10.1016/j.pnmrs.2020.07.001. Epub 2020 Jul 15. NMR-based isotopic and isotopomic analysis. Akoka S(1), Remaud GS(2). Author information: (1)Université de Nantes, CNRS, CEISAM, UMR 6230, F-44000 Nantes, France. Electronic address: serge.akoka@univ-nantes.fr. (2)Université de Nantes, CNRS, CEISAM, UMR 6230, F-44000 Nantes, France. Electronic address: gerald.remaud@univ-nantes.fr. Molecules exist in different isotopic composi...