Figure 7.
The HPLC chromatograms of shellac fibers loaded with SA extract (a) and the standard rhein (b) reveal an identical retention time for the rhein peak at 23.5 min.
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.