Figure 1.
HPLC chromatograms of the standards used at 254 nm. EVE—evernic acid, USN—usnic acid, ATR—atranorin, CHL—chloratranorin, PHY—physodalic acid, PRO—protocetraric acid, and FUM—fumaprotocetraric acid.
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.