Thread: Question from NMRWiki Q&A forum Long BioPack calibration run time
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Unread 08-06-2015, 10:24 AM
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Default Long BioPack calibration run time
Long BioPack calibration run time

I am running BioPack on a Varian INOVA 800MHz on a newly aquired 13C15N1H sample and I have come across an issue that I was wondering if anyone could shed some light on.

When it got to the CBCAcoNH, the experiment it setup to calibrate the phi7cal is set to take ~3hours! with nt=520. I have reasonable signal (my sample is 0.8mM), so why is it doing this? Does it determine a S/N value at somepoint that maybe went awry?

I set up BioPack in the following manner:

create new experiment, load ghn_co and set parameters:

cexp(100) jexp100 ghn_coTROSY='n' gzlvl1=10000 gzlvl2=9600 mag_flg='n' np=1024, tpwr=62, pwClvl=63, pwNlvl=62set pw and tof as manually determined

Main Menu ->Setup->Proteins->Manag Probe Files=> Update Probe Files with these Parameters

Back->Calibrate->Full

Thanks for any insights!



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