Platinum-195 nuclear magnetic resonance spectroscopy (platinum NMR or Pt NMR) is a spectroscopic technique which is used for the detection and characterisation of platinum compounds. The sensitivity of the technique and therefore its diagnostic utility have increased significantly starting from the 1970s, with Pt NMR nowadays considered the method of choice for structural elucidation of Pt species in solution.
Examples of compounds routinely characterised with the method include platinum clusters and organoplatinum species such as Pt-based antitumour agents. Additional applications of Pt NMR include kinetic and mechanistic studies or investigations on drug binding.