Applied Science delivers the goods again, this time with nuclear quadrupole resonance. NQR is a bit like NMR but doesn't need huge magnets - for the technically-minded it might be worth considering.
His instrument does seem to require a huge sample size, however! By comparison, NMR easily would give results from a 100mg sample, not to mention a much more information-rich output.
Other challenges include tuning the circuit filters for different frequency ranges - I'm far from being an electronics genius so I'll leave it up to someone else to suggest solutions for that.
“There is a way of manipulating matter and energy so as to produce what modern scientists call 'a field of force'. The field acts on the observer and puts him in a privileged position vis-à-vis the universe. From this position he has access to the realities which are ordinarily hidden from us by time and space, matter and energy. This is what we call the Great Work."
― Jacques Bergier, quoting Fulcanelli