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. Author manuscript; available in PMC: 2017 Nov 28.
Published in final edited form as: Anal Chem. 2017 Nov 7;89(22):12201–12208. doi: 10.1021/acs.analchem.7b02884

Figure 1.

Figure 1

Example of the effect of magnetic field strength on an NMR spectrum. 1D-1H spectra of L-citrulline collected at fields corresponding to 1H frequencies of (top) 500 MHz and (bottom) 900 MHz. Only a small spectral subdomain [1.4, 2] ppm is displayed. The 500 MHz spectrum is from the BioMagResBank (BMRB ID: bmse000032) small molecule database.18 Data were collected on Bruker spectrometers.