Figure 4.
Peak areas of (+)-Cathine 
and (−)-Cathine
as functions of sample loading on a column using molecularly imprinted polymer with (+)-Cathine as the template.
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.