[Question from NMRWiki Q&A forum] DOSY deep signal distortions
DOSY deep signal distortions
Hi heveryone,I'm trying to run some DOSY experiments, but the resulting spectra are VERY distorted, and this is not just a problem of phase. The strange thing is that these distortions didn't appear as long as a few days ago... Have you got any suggestion?Further details: The spectrometer is a Bruker 400MHz, and the sequence is the dstegp3s
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nmrlearner
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06-26-2013 09:39 AM
[Question from NMRWiki Q&A forum] How to process DOSY data by using MestReNova?
How to process DOSY data by using MestReNova?
This is my first time in doing DOSY experiment. i got the data but dont know how to process it.
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nmrlearner
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06-12-2012 10:36 AM
[Question from NMRWiki Q&A forum] Odd distortion in HOD peak in 1D DOSY (stebpgp1s)
Odd distortion in HOD peak in 1D DOSY (stebpgp1s)
I have a small distortion in the HOD peak in my 1D DOSY spectra. However, it only occurs for the HOD signal and no other peaks in the spectrum. Occasionally, I am able to "fix" this by not spinning the sample (though not always). Any help would be appreciated.
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nmrlearner
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12-02-2011 02:31 PM
[Question from NMRWiki Q&A forum] distorted DOSY ID
distorted DOSY ID
Why are some Dosy spectra 1d so distorted?. How can this be overcome?
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nmrlearner
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01-07-2011 12:10 PM
[Question from NMRWiki Q&A forum] How many peaks should be in DOSY spectrum of D2O sample?
How many peaks should be in DOSY spectrum of D2O sample?
Hello, I've recorded a DOSY data set and processed with Bayesian DOSY transform. There seem to be at least two peaks in the processed spectrum. Is the second one an artifact?
In theory there might be a signal of H2O along with HDO, but wouldn't exchange of deuterium be much faster than the experiment time scale?
Thanks.
nmrlearner
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08-28-2010 10:31 AM
[Question from NMRWiki Q&A forum] How to process DOSY data in Mnova?
How to process DOSY data in Mnova?
Hi we have a DOSY dataset aquired using Doneshot.c sequence on a varian instrument.
Will MNOVA process the dataset?
Thanks!
nmrlearner
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08-25-2010 04:37 AM
[NMR software blog] Installing the DOSY toolbox on a Mac
Installing the DOSY toolbox on a Mac
The DOSY toolbox is an open source program written by Dr. Mathias Nilsson that runs on Windows, Linux, Mac and on any other platform covered by MATLAB. I am going to review it next week, while today I am giving a few practical tips that I prefer to leave out of the review, for the sake of readability and tidiness.
I know that 14% of my readers have a Mac, and I have verified that the original installation instructions of the toolbox are inaccurate and unclear (for the average Mac user at least), so today I will simply explain how you can install the...
nmrlearner
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08-21-2010 06:29 PM
[NMR software blog] Qr-dosy
QR-DOSY
At the beginning of the month we saw that there are cases where the diffusion coefficients can be measured with the same mathematical tools used to measure relaxation. We have seen DOSY spectra of pure compounds where each signal decays as a pure exponential. Even a mixture can behave in the same way, if the signals don't overlap. In summary, calculating the diffusion coefficients is often easy.
What I was curious to discover was: is it possible to recalculate the components of a mixture if the diffusion coeffients are known? From a pure mathematical point of view the answer was...