Preparative Liquid Chromatograph Apparatus and Method for Assisting Determination of Preparative Separation Conditions

A preparative liquid chromatograph apparatus in which a sample containing compounds separated from each other in a temporal direction by a liquid chromatograph is introduced into a detector and a fraction collector, and one or more fractions of the sample are collected by the fraction collector based on a detection result by the detector, with each fraction containing a compound or a compound group including a plurality of compounds, the preparative liquid chromatograph apparatus comprising:

• a result storage section configured to store analysis results obtained for a plurality of samples by performing, for each identical sample, liquid chromatographic analyses under a plurality of different separation conditions;
• a display-target selection receiver configured to display, on a display section, an analysis result display screen on which a plurality of result display areas for individually displaying analysis results obtained by different liquid chromatographic analyses, and a selection indication area for allowing a user to select one desired sample from a plurality of samples, are arranged, and to receive an operation for selecting one sample by a user in the selection indication area of the analysis result display screen displayed;
• and
• an analysis result display processor configured to retrieve, from the result storage section, a plurality of analysis results corresponding to one sample received by the display-target selection receiver, and to display each of the plurality of analysis results in each of the plurality of result display areas of the analysis result display screen.