Thread: Question from NMRWiki Q&A forum What will happen if I use long pulse?
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Unread 07-06-2012, 05:21 PM
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Default What will happen if I use long pulse?
What will happen if I use long pulse?

Hello everybody. We have an AVANCE 500 MHz bruker instrument. Unfortunately, our amplifier has been weakened and I can not reach 90 degree pulse for X nuclei channel. When I increase the power (decrease the Pl in XWin NMR) my signal always grow. I am going to use long pulses with duration of 80 microsecond to 100 microsecond or even more to reach 90 degree pulse instead of common pulses which are about 10 microsecond. Is this situation hurt any part of instrument? Or I only lose current broad excitation band and will be forced to take several spectrum to sweep expected area?



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