Nuclear magnetic resonance spectroscopy of stereoisomers
Nuclear magnetic resonance spectroscopy of stereoisomers most commonly known as NMR spectroscopy of stereoisomers is a chemical analysis method that uses NMR spectroscopy to determine the absolute configuration of stereoisomers. For example, the cis or trans alkenes, R or S enantiomers, and R,R or R,S diastereomers.
Source: Wikipedia — Nuclear magnetic resonance spectroscopy of stereoisomers (CC BY-SA 4.0)