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.
Characterization of CDNs by LC-MS/MS. a Extracted ion chromatograms (EIC) of CDN standards at concentration 100 nmol/L analyzed by LC-MS (full scan). Tandem mass spectra of 2′3′ cGAMP (b), 3′3′ cGAMP (c), c-di AMP (d), and c-di-GMP (e), using 30 V CE. Fragments used for the LC-MS/MS quantification are highlighted in red. The proposed fragments are designated as neutral molecules
