The 13C NMR for dimethylsulfoxide shows a signal at 39.7ppm, but we observed additional signals with low intensities.Why?
Dimethilsulfoxide may give signal, event at low concentrations. This may be counteracted using a blank : all reactive including DMS without the agent studied (the reactive which is dissolved in DMS).
Thanks Pablo
The broad signal at ~3.3 ppm in the proton spectrum is due to traces of moisture (water).
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Are they symmetrical in respect to the septuplet at ~39 ppm?
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