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.
(A) Total ion chromatograms of volatile oils in SS of the B region; (B) reference compounds spectrogram; (C) the heat map clustering of the VOCs in SS samples in different regions (The codes of the compounds correspond to those in Table 2).
