Co-acquisition of hyperpolarised 13C and 15N NMR spectra #DNPNMR

Already I bit older bit still worth to read.

Day, Iain J., John C. Mitchell, Martin J. Snowden, and Adrian L. Davis. “Co-Acquisition of Hyperpolarised 13C and 15N NMR Spectra.” Magnetic Resonance in Chemistry 45, no. 12 (2007): 1018–21.

Recent developments in dynamic nuclear polarisation now allow significant enhancements to be generated in the cryo solid state and transferred to the liquid state for detection at high resolution. We demonstrate that the Ardenkjaer–Larsen method can be extended by taking advantage of the properties of the trityl radicals used. It is possible to hyperpolarise 13C and 15N simultaneously in the solid state, and to maintain these hyperpolarisations through rapid dissolution into the liquid state. We demonstrate the almost simultaneous measurement of hyperpolarised 13C and hyperpolarised 15N NMR spectra. The prospects for further improvement of the method using contemporary technology are also discussed. Copyright © 2007 John Wiley & Sons, Ltd.

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