Figure 5.
Detection of nearly 200 carboxyl-containing metabolites in urine by 2D 1H-15N heteronuclear single quantum correlation spectroscopy (HSQC) NMR after tagging with 15N isotope containing ethanolamine [46].
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.