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.
With separate excitations for PCr and Pi, frequency fluctuations had the potential to affect pH estimation. In 1 data set (128 averages), the individual un‐averaged FIDs were extracted from the raw data and are plotted after apodization with the fitted line width (A); fluctuations are seen to average toward 0 mean frequency offset. The frequency distribution also lies within the fitted line width (65 Hz) (B)
