Thank you very much for your replies to my query. I was missing a crucial
step, the "genfid" command. I extracted the appropriate rows and utilized
the procedure below to zero fill to 32 K and this worked beautifully.
Again, thanks for the help.
Brian
K. Brian Killday
Research Specialist
Division of Biomedical Marine Research
Harbor Branch Oceanographic Institution
5600 U. S. 1, North
Ft. Pierce, FL 34946
Phone: 561-465-2400 ext. 456
Fax: 561-461-2221
Email: killday@hboi.edu
> -----Original Message-----
> From: Daniel W. Bearden [SMTP:bearden@manta.chbr.noaa.gov]
> Sent: Tuesday, May 05, 1998 10:22 AM
> To: ammrl@wwitch.unl.edu
> Subject: Re: Zero filling COSY traces. (fwd)
>
> Hello,
> Unfortunately the proposed solution does not work in xwinnmr 1.3, and I
> suspect it does not work under uxnmr. The steps I found to work are:
> 1) Extract the row from the 2D, saving as a 1-d spectrum.
> 2) Do: ift (there is no 'fid' file at this point)
> 3) Do: genfid (You should specify a new expno. This creates the file 'fid'
> in
> the new experiment.)
> 4) In the new experiment, change SI to the desired value.
> 5) Do: ft
>
> Hope this helps,
> Dan
>
> On May 5, 9:02am, Dr. Dieter Scheutzow wrote:
> > Subject: Zero filling COSY traces. (fwd)
> > Forwarded message:
> > > From Killday@HBOI.edu Fri May 1 18:37:43 1998
> > > Message-Id: <30C46541A1B3D111BF0500A0C99D6E5102B4A0@SAILFISH>
> > > From: Brian Killday <Killday@HBOI.edu>
> > > To: "'ammrl@wwitch.unl.edu'" <ammrl@wwitch.unl.edu>
> > > Subject: Zero filling COSY traces.
> > > Date: Fri, 1 May 1998 10:46:02 -0400
> > > Mime-Version: 1.0
> > > X-Mailer: Internet Mail Service (5.0.1460.8)
> > > Content-Type: text/plain
> > >
> > > Greetings NMR fans,
> > >
> > > Does anyone out there know how to zero fill 1d traces from 2d phase
> > > sensitive COSY spectra in UXNMR on an AMX? I acquired and processed a
> 2d
> > > spectrum with 4k points in f2, selected the appropriate row in the 1d
> menu
> > > and transferred this row to 1d using the 1D-mode button. I then
> copied and
> > > renamed this using the wrpa command. This trace consists of 4K points
> and
> > > has a digital resolution of about 1 Hz. I would like to zero fill
> this
> file
> > > to 32K points. I have tried doing an inverse transform (ift command),
> > > changing SI to 32K in EDP, and retransforming (ft) but this does not
> work,
> > > the spectrum still has just 4k points. Am I on the right track?
> Thanks in
> > > advance for any help on this.
> > >
> > > Brian
> > > K. Brian Killday
> > > Research Specialist
> > > Division of Biomedical Marine Research
> > > Harbor Branch Oceanographic Institution
> > > 5600 U. S. 1, North
> > > Ft. Pierce, FL 34946
> > >
> > > Phone: 561-465-2400 ext. 456
> > > Fax: 561-461-2221
> > > Email: killday@hboi.edu
> > >
> > >
> > Hello Brian,
> >
> > you should try to extract the desired trace from the raw data as 1D fid
> > with the command "rser <row#> <newexpmo#>. Then UXNMR shows the new
> expno #
> > as 1D fid. Now it's possible to set SI to 32k and after FT to get a
> spectrum
> > with high digital resolution.
> >
> > Dieter
> >
> >
> > Dr. Dieter Scheutzow
> > Institut fuer Organische Chemie
> > der Universitaet Wuerzburg
> >
> > Am Hubland
> >
> > D-97074 Wuerzburg
> >
> > Tel. +49 (0) 931-888-5309
> > Fax +49 (0) 931-888-4606
> >
> > e-mail: scheutzo@chemie.uni-wuerzburg.de
> >
> >-- End of excerpt from Dr. Dieter Scheutzow
>
>
>
> --
> ***************************************************************
> Daniel W. Bearden Phone: (803) 762-8527
> National Ocean Service FAX: (803) 762-8700
> 219 Ft. Johnson Rd. e-mail: bearden@manta.chbr.noaa.gov
> Charleston, SC 29412
> ***************************************************************