How can I know the complete evaporation of volatile solvent in solution ?

31 March 2014 1 4K Report

I want simple qualitative methods to evaluate the evaporation of volatile solvents from a solution.

For example, if I have DCM in a solution and I am evaporating it, how can I know that after one hour if it is completely evaporated from solution?

Nitirat Chimnoi

Simple way weighting or observing the constant weight on the balance. Or using the headspace technique e.g. SPME and determine by GC

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