Figure 6.
The two approaches for the pH effect towards antioxidant higenamine: (A). withdrawing inductive effect (-I) reduced the electron-transfer (ET) potential of benzene-ring; (B). suppressed ionization of phenolic-OH by solution H+.
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.