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.
Target MS/MS analysis by UPLC-Q-TOF-MS of the hydrolysates of 3-CQA treated with ammonium hydrogen carbonate. MS/MS data for 3-CQA was obtained in negative ESI mode. MS/MS data was for collision energies of 10 eV, 20 eV, and 30 eV. Cpd represents compound. Compounds 1, 4 and 5 were identified as 3,4-dihydroxymandelic acid, caffeic acid, and quinic acid, respectively.
