Separate your starter section into three equal sections.

Preferably, at least a fraction of the solvent (26) is added at a point of the extruder (10) that is downstream of the initial section, for example, at a distance of at least 4 D from the initial section of the extruder (10).

The actual allocation of a starting area to a Participant is made by the Organiser.

Article 11 The actual allocation of a starting area to a Participant is made by the Organiser.

The Participant must be present in the allocated starting area no less than five minutes before the start.

At least one of the phases is periodically transferred as separate portions from the end section (2) of a column (1) to the starting section (2) of the following column (1) following the movement direction thereof.