Trying to stay on top of some of the topic's, but MNR has come up a few time's ....
https://www.youtube.com/watch?v=1bw6Zi17DBI
http://en.wikipedia.org/wiki/Nuclear_magnetic_resonance_spectroscopy
https://www.youtube.com/watch?v=1bw6Zi17DBI
http://en.wikipedia.org/wiki/Nuclear_magnetic_resonance_spectroscopy