Figure 2.
Chromatograms obtained for different valve switching times ((A), 15; (B), 21; and (C), 24 s). Peak: 1, C525; 2, C545.
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.