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.
Areas of the supernatant with their respective percentages of adsorption (%) at different times with each of the three mesostructured silica magnetic materials with different adsorption solvent: acetonitrile/water/formic acid 90/19/1 (v/v/v) (yellow colour) and methanol acidified with 0.1% acid acetic (green colour).
