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.
A comparison of various selection experiments for their ability to isolate valine from an ex vivo sample (left) and alanine from an in vivo sample (right) of D. magna. Comparing a basic 1D 1H spectrum (a,f) to a basic selection (b,g), GEMSTONE (c,h), GEMSTONE—1D TOCSY (d,i), and DREAMTIME (e,j). Vertical expansions showing the relative breakthrough of artifacts the GEMSTONE—1D TOCSY and DREAMTIME spectra recorded on the ex vivo sample.
