1H and 13C n.m.r. spectroscopic methods for the analysis of fossil fuel materials: Some novel approaches

A number of¹H and¹³C n.m.r. methods, apart from conventional procedures which rely on chemical shift classifications alone, can be used to identify chemical or structural characteristics of fossil fuel materials. The information available via multiplet selection in ¹³C n.m.r., two-dimensional J spectroscopy, homonuclear ¹H-¹H correlation spectroscopy, and heteronuclear ¹³C-¹H correlation procedures, is discussed and illustrated.