Hello,
The Analysis importer for Felix relies on a certain part of the Felix
header to determine the isotope. It is not that infrequent that the Felix
information in that field is not the isotope, or not as we would want it
(1-letter code and all that). In your case it's probably either not
finding anything in that field or finding something it can't parse
correctly, so it defaults to H. But when you open up a spectrum in
Analysis it lets you change the istope just in case of circumstances like
this. So in the second dialog that pops up when you are opening a
spectrum, in the second column is listed the isotope. Change the H to an
N in the appropriate dimension and you should be ok. (Also check the
referencing makes sense. But that you can change after the fact.
Currently we don't allow the isotope to change after it's loaded.)
Wayne
On Tue, 23 Oct 2007, Alice Bowen wrote:
> Hello,
>
> I have been analysing some old felix HSQC spectra using analysis, however
> when I have opened the data in analysis for each spectra, when going through
> the verification step, it has failed to recognise the Nitrogen dimension and
> instead tried to label it as Hydrogen. This hasn't been too much of a
> problem as the program has managed to pick up that this was wrong due to the
> difference in resonance frequencies when you select ok. However in the last
> few spectra I have tried to open it has not only been the isotope which has
> been incorrect but also the other data associated with the second dimension,
> frequency, spectral width etc. All of the spectra have been opened in the
> same project and although they are all the same type of HSQC spectra, they
> have been taken on a range of different spectrometers (500MHz, 600MHz and
> 750MHz).
>
> Has any one else experienced anything similar? and if so did you manage to
> find a solution?
>
> Thank you in advance,
>
> Alice Bowen
>
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