Fig. 1.
Identification of 3-CQA, 4-CQA, 5-CQA, 3- FQA, 3,4-diCQA, 3,5-diCQA, 4,5-diCQA, and caffeine from chromatograms of the roasted and ground coffee samples.
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.