Hello good day,

I think you can perform a test to identify ketones, and thus be able to identify if you obtained acetone, since it is a very volatile solvent and in TLC it evaporates quickly.

https://people.chem.umass.edu/mcdaniel/chem269/experiments/aak/procedure.pdf

Thank you, dear Edgar. Your answer is true. However, except for using methods such as GC, how can I follow the completion of the reaction (isopropanol conversion to acetone)? Have you a simple solution to this?

how about UV, when acetone peak no further increases, reaction done.

or You could monitor IPA with ir at C-OH wavelengths. you could have a flow cell running from reaction vessel thru spectrometer.

Dear Wayne. I need a simple (such as TLC) and no instrumental technique to follow the completion of the reaction.