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.
MS5 basis spectra learned by NMF. The NIST data set is used. Two basis spectra are learned, and they align perfectly with the theoretical peaks of α2′–3′ and α2′–6′. The top basis spectrum contains the conventional α2′–3′ diagnostic signatures (m/z = 103.08 and 131.07), and the bottom basis spectrum contains the conventional α2′–6′ diagnostic signatures (m/z = 89.06, 117.06).
