Describe about how mass spectroscopy can help in the studying of isomers and by nmr can be directly differentiate the isomers in a compound or first we have to sepratly isolate by chimeric hplc chromatography.
it depends on what type of isomers are you dealing with. If you are dealing with enantiomers there will be no difference in MS or NMR specter. The difference comes from HPLC column. If you are using chiral column you may get 2 distinct peeks that are identified as the same compound. These are your isomers. Non chiral wont have this distinction.