Preparative liquid chromatograph

Abstract

A preparative liquid chromatograph for separating and extracting components in a sample, the preparative liquid chromatograph including a separation channel () through which a mobile phase flows, an injector () that injects the sample into the mobile phase, a separation column () for separating components in the sample injected into the mobile phase, the separation column () being provided downstream of the injector () on the separation channel (), a detector () for detecting peaks of the components separated by the separation column (), a fraction collector () configured to collect an eluate from the separation column () into a plurality of collection containers () at a downstream of the detector () while fractionating the eluate, and a controller () for controlling operation of the fraction collector (), wherein the fraction collector () is provided with peak collection containers () and waste liquid collection containers (), each peak collection container () is used for collecting a peak portion including a collection target peak detected by the detector () in the eluate, and each waste liquid collection container () is used for collecting a waste liquid portion not including the collection target peak in the eluate, and the controller () is configured to collect the peak portion including the collection target peak detected by the detector () in the eluate in the peak collection container (), and to collect at least a part of the waste liquid portion in the waste liquid collection container ().