Subject: Re: [nmr_sparky] peak picking
From: Mandar T. Naik
Date: Jun 6, 2006

Previous: 157

Dear Lassalle,
I am glad it worked to your satisfaction. I was just wondering, while
processing your data, did you happen to pay attention to the window function
scaling factor. If you require huge first order phase correction in either
dimension, please set it to 1 (-c flag in nmrPipe or FCOR in XwinNMR).

And yes, there is a handy t flag for ucsfdata, if you know how to
distinguish artifacts and noise based on intensity. Of course rt chemical
shift limits are useful if those are not spread everywhere. Just be little
careful not to kill real peaks!!
Best regards
-mandar

On Tuesday 06 June 2006 16:56, jpwml wrote:
Dear Mandar,
as usual a very good tip with the 2D projections,
but anyhow this is not the problem.
I found that I have some very high intensity noise peaks and this
seems to disturb kr very much.
But if I reduce the contour level or intensity my peaks are also invisble.
The best method I found is using the world statement and then pick the
peaks by adjusting the linewidth accordingly in the kt statement.
Off course if I could cut the region with the noisy peaks out, I guess
kr would also work.
But anyhow in this way I can get a good peak list.

Ciao

Lassalle