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.
HPLC chromatograms. (a) the herb extract; (b) the mixture of the extract, hypericin and protohypericin before adsorption; (c) the supernatant after the adsorption of Fe3O4@PDA NSs; (d) the supernatant after the adsorption of Fe3O4@PDA/Hyp NSs.
