Everything. About the only thing they have in common is "you learn about them in analytical chemistry class."
Except "Nuclear Mass Resonance Spectroscopy", which doesn't exist and I assume is an error that should have read "Nuclear Magnetic Resonance Spectroscopy".
X-Ray spectroscopy gives you the conformation in a fairly direct (okay, it's actually not all that direct) manner.
NMR spectroscopy mainly gives you chemical structure information; you can finesse it a bit (NOESY and related techniques) to give some conformational information.
Mass spectroscopy is pretty much chemical structure only (and, again, it's not all that direct, it just tells you what fragments the molecule breaks apart into; figuring out how they fit together is your problem).
Gordon Keith Hamer has written: 'Substituent effects in nuclear magnetic resonance spectroscopy' -- subject(s): Nuclear magnetic resonance spectroscopy
Alois Steigel has written: 'Dynamic NMR spectroscopy' -- subject(s): Nuclear magnetic resonance spectroscopy
Tara P. Das has written: 'Nuclear quadrupole resonance spectroscopy' -- subject(s): Nuclear induction, Radiofrequency spectroscopy, Solids
Jan Schraml has written: 'Two-dimensional NMR spectroscopy' -- subject(s): Nuclear magnetic resonance spectroscopy
NVR (Nuclear Magnetic Resonance) Spectroscopy is a research technique that examines the magnet properties of atomic nuclear material. It's mainly used by chemists and biochemists.
Kei Matsuzaki has written: 'NMR spectroscopy and stereoregularity of polymers' -- subject(s): Polymers, Nuclear magnetic resonance spectroscopy, Analysis
Frank A. Bovey has written: 'NMR of polymers' -- subject(s): Nuclear magnetic resonance spectroscopy, Analysis, Macromolecules 'Macromolecules' -- subject(s): Macromolecules 'Emulsion polymerization' -- subject(s): Polymerization, Emulsions, Artificial Rubber 'Chain structure and conformation of macromolecules' -- subject(s): Macromolecules 'Nuclear magnetic resonance spectroscopy' -- subject(s): Nuclear magnetic resonance spectroscopy
Else Rubaek Danielsen has written: 'Magnetic resonance spectroscopy diagnosis of neurological diseases' -- subject(s): Brain, Brain Diseases, Brain chemistry, Diagnosis, Diagnostic use, Diseases, Nuclear magnetic resonance, Nuclear magnetic resonance spectroscopy, Pathology
Granit Konstantinovich Semin has written: 'Nuclear quadrupole resonance in chemistry' -- subject(s): Nuclear quadrupole resonance spectroscopy
F. A. Bovey has written: 'Emulsion polymerization' 'Nuclear magnetic resonance spectroscopy'
It's around 7-8 ppm.
If it's pure, my favorite would be nuclear magnetic resonance spectroscopy.