Spectra of intact bovine and canine crystalline lenses in vitro at 37°C were generated using phosphorus-31 nuclear magnetic resonance (NMR). Lens incubation in a pure D2O buffer results in a progressive narrowing of the tissue P-31 NMR signals.
Glonek, T., Kopp, S. J., & Greiner, J. V. (1983). Phosphorus-31 NMR of the Intact Crystalline Lens: I. The Living Lens Spectrum. II. The Spectroscopic Effects of Deuterium Oxide Incubation. Phosphorus and Sulfur and the Related Elements, 18(1-3), 329-332.