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.
A 2D 1H-15N HSQC spectrum of human serum obtained after tagging carboxyl-containing metabolites with 15N-ethanolamine. Nearly 180 metabolite peaks are detected and 21 of these stronger peaks are identified as annotated by comparing the chemical shifts with those of metabolites in Table 1.
