______________________________________________________
Dr. Gerhard Eber Phone: +49-7243-504450
Software Department FAX: +49-7243-504480
Bruker Analytik GmbH Email: Gerhard.Eber@bruker.de
D-76287 Rheinstetten Am Silberstreifen
______________________________________________________
-----Original Message-----
From: Don Leek <leek@ned1.sims.nrc.ca>
To: bruker-users-mail@bloch.cchem.berkeley.edu
<bruker-users-mail@bloch.cchem.berkeley.edu>
Cc: Don Leek <leek@ned1.sims.nrc.ca>
Date: Donnerstag, 25. Februar 1999 20:23
Subject: spectral quality with wide sweep widths
>
>My instrument is a DRX-400.
>
>Last night I ran a 13C spectrum on an unusual organometallic
>which was expected to give a signal down near 300ppm. I usually
>run 13C with AQ_mod = DQD and I get nice clean spectra. For
>this spectrum, I used a sweep width of 320ppm or 32000 Hz so
>I was forced to use AQ_mod = qsim. The sample was dilute and
>the spectrum showed a number of noise glitches that were on
>the same order of intensity as the real signals. Most of them
>could be distinguished by their phases, but here is my question:
>
>What is the optimum combination of AQ_mod, DIGMOD, etc. for
>obtaining clean spectra with large sweep widths?
>
>Thanks in advance.
>
>******************************************
> Donald M. Leek
> Steacie Institute for Molecular Sciences
> National Research Council Canada
> Ottawa, Canada K1A 0R6
> phone: (613) 993-6356
> fax: (613) 952-0068
> email: leek@ned1.sims.nrc.ca
>******************************************
>
>
>