Fig. 7. Ultrafast NMR spectra of a mixture of 7 metabolites in H2O/D2O (90/10): (a) DQS (c) COSY. All spectra were recorded in four interleaved scans to increase the observable spectral width, and four dummy scans resulting in an acquisition time of 41 s, using a double-quantum build-up delay τ = 25 ms. Spectrum (b) was obtained from spectrum (a) by a shearing transformation at a processing stage. All spectra were recorded with a 600 MHz spectrometer equipped with a cryogenic probe. Reproduced from ref. 156 with permission from the Royal Society of Chemistry.
