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Default What is the actual point of dummy scans?

What is the actual point of dummy scans?

Hi, I was wondering why so many pulse programs use dummy scans. Correct me if I'm wrong but I think dummy scans are supposed to correct for machine noise, however, I have found that they are somewhat unnecessary.

Can someone explain or give me some arguments in favor of dummy scans?



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peak intensity vs number of scans
Hi, I have a question regarding how the peak intensities change when with increase in number of scans when the data is collected on a Varian NMR spectrometer. Suppose I collect a 15N-1H HSQC spectra with 8 scans and then collect the same spectra with 16 scans, would the peak intensities be double in the 16 scan spectra as compared to the 8 scan spectra? Does anyone know how the varian spectrometer scales the intensities according to the number of scans? Any suggestion or reply to my query will be extremely useful and greatly appreciated. Thanks.
aish1982 NMR software 0 08-08-2008 11:56 PM
peak intensity vs number of scans
Hi, I have a question regarding how the peak intensities change when with increase in number of scans when the data is collected on a Varian NMR spectrometer. Suppose I collect a 15N-1H HSQC spectra with 8 scans and then collect the same spectra with 16 scans, would the peak intensities be double in the 16 scan spectra as compared to the 8 scan spectra? Does anyone know how the varian spectrometer scales the intensities according to the number of scans? Any suggestion or reply to my query will be extremely useful and greatly appreciated. Thanks.
aish1982 NMR Questions and Answers 0 08-08-2008 07:28 PM


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