Hello, I've recorded a DOSY data set and processed with Bayesian DOSY transform. There seem to be at least two peaks in the processed spectrum. Is the second one an artifact?

In theory there might be a signal of H2O along with HDO, but wouldn't exchange of deuterium be much faster than the experiment time scale?

Thanks.

Hello, I've recorded a DOSY data set and processed with Bayesian DOSY transform. There seem to be at least two peaks in the processed spectrum. Is the second one an artifact?

In theory there might be a signal of H2O along with HDO, but wouldn't exchange of deuterium be much faster than the experiment time scale?

edit screenshot of the dosy processed spectrum is below.

D values are: 2.12, 1.97, 1.64 x 10(-5) cm2/s - top to bottom.

Thanks.

Hello, I've recorded a DOSY data set and processed with Bayesian DOSY transform. There seem to be at least two peaks in the processed spectrum. Is the second one an artifact?

In theory there might be a signal of H2O along with HDO, but wouldn't exchange of deuterium be much faster than the experiment time scale?

edit screenshot of the dosy processed spectrum is below.

D values are: 2.12, 1.97, 1.64 x 10(-5) cm2/s - top to bottom.

edit2: Thanks, Adolfo. I do see slight phase distortion at the first two increments - where gradients are the strongest, actually I've ended up discarding them (but here all increments are included).

Thanks.