FIG. 1.
LR mass spectrum of apicidin obtained by electron impact at 70 eV (the molecular ion is m/z 623) (A), by chemical ionization at 200 eV ([M+1]+ peak is at m/z 624) (B), and by fast atom bombardment ([M+1]+ peak is at m/z 624) (C).
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.