A method and device for chromatographic separation producing at least two
fractions are provided, in which: (i) the solvent is at least partially
evaporated from the fractions produced; (ii) the solvent vapours thus
produced are separated; stage (i) of the method being carried out, for at
least one of the fractions, at least partially with the separated solvent
vapours originating from one of the other evaporated fractions.
