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.
GC/MS chromatograms of fatty acid methyl esters derived from membrane preparations of the designated N. meningitidis strains. Relevant peaks are labeled in each chromatogram. The y axes show the relative peak intensities of the summed ion abundances.
