This is most likely from fluorine polymer material in the probe itself. To
mitigate the signal, try a 20-30 ms PAD, or use an inversion recovery
sequence adjusting delay times until you hit the sweet spot.
Reza
On Sat, May 9, 2026 at 7:14 AM pothula purushotham reddy via groups.io wrote:
> Hi there,
>
> I am measuring *¹⁹F NMR* on a *Prodigy probe* at *400 MHz*, but the
> spectra look strange/weird. Does anyone know what might be causing this or
> how to fix it? Any suggestions would be greatly appreciated.
>
> Thank you!
>
>
> Best
> Purush
>
>
>
>
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Received on Sat May 09 2026 - 14:37:06 MST