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.
Principal component analysis of targeted mass spectrometry data, drawn with Hotelling’s 95% confidence ellipse. The chemometric matrix consisted of 15 quantified samples (targeted variables) and 38 objects (for quantification data, see Table S3, Supporting Information). Representative samples are highlighted (T23, T26, T27, and T37).
