Hi all,
for two dimensional measurements of all kinds usually I try
to measure the FIDs as long as possible. There are clear
limitations in the case of pulse sequences using heteronuclear
decoupling,
but for TOCSY, NOESY, HMBC ... the normal size of the FID is
8k.
No problems (except the disk space demands) with one exception:
NOESY.
A NOESY measured with an 1k FID gives much less T1 noise,
than the corresponding experiment done with 8k FIDs. Even
more: you can take the same experimental data and you get better
quality spectra if you use only the first part of the FID for
processing.
This observation is reproducible.
And now I would be very happy to have an explanation for this behaviour.
Any ideas?
Best regards
Rainer
PS: Please excuse my strange email address in the reply-field. My
ISP changes this address field by any reason. The best reply address
would
be Rainer.Haessner_at_ch.tum.de
Received on Wed Aug 02 2000 - 12:32:20 MST