Figure 2.
Structural formulas of the target gases: (a) nonanal; (b) n-decane; (c) acetoin (3-hydroxy-2-butanone); (d) acetone; (e) methyl i-butyl ketone (MiBK; 2-butanone).
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.