FIGURE 4.

²H decoupled ¹³C DNP NMR spectrum of hyperpolarized [U-¹³C₆, U-²H₇]- D-glucose in D₂O at 9.4 T. The hyperpolarized spectrum (red) was recorded using a single scan with a 9° flip angle while the thermally polarized spectrum was acquired in 16 scans with a 45° flip angle after the decay of hyperpolarized magnetization. The spectra show the ¹³C carbons of the α and β anomers as multiplets due to ¹³C homonuclear J₁₂ couplings. (Reproduced with permission from Reference 62)