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.
Comparison between real cattle feed and its main individual ingredients for pseurotin A. Apparent recoveries (RA, blue bar), matrix effects (SSE, yellow bar), and extraction efficiencies (RE, green bar) in percent include the error indicator expressed as the relative standard deviation.
