Abstract: An installation for separating components, in particular by high-pressure liquid chromatography along a plurality of channels in parallel, the outlets from the channels being connected via controlled selective connection means to the inlets of parallel temporary storage means whose outlets are connected via controlled selective connection means to ducts for depositing in collector means or in disposal means.

Abstract: Apparatus for separating the components of a sample by OPLC type chromatography using liquid under pressure, the apparatus comprises a stationary phase forming one or more sample treatment paths and means for feeding moving phase to one end of the stationary phase, with means at the opposite end of the stationary phase for collecting moving phase, means for injecting moving phase also being provided at the sides of the stationary phase in order to eliminate edge effects in the fronts of sample components and in order to separate treatment paths from one another.