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.
Changes in the feed, feed-Trp, and feed+aKG solutions during long-term storage. (A) Color change measured as ΔE*. (B) Changes in ammonia concentration. (C) Structure identifications for tier 1–3 features which are newly formed upon aKG addition to feed. (D) Heatmap showing abundance changes of features of interest (denoted with rt_m/z_structure number for tiers 1–3, or else denoted as tier 4) at RT.
