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. Author manuscript; available in PMC: 2016 Feb 15.
Published in final edited form as: Adv Exp Med Biol. 2012;992:147–164. doi: 10.1007/978-94-007-4954-2_8

Figure 6.

Figure 6

A 2D 1H-15N HSQC spectrum of human urine obtained after tagging carboxyl-containing metabolites with 15N-ethanolamine. Nearly 200 metabolites are detected, and the annotated peaks indicate identified metabolites [Reproduced with permission from reference 96].