Software Manual

Column Performance Analysis
User Guide | 255
Column Performance — Manual Adjustment
In the Manual Adjustment tab of the Column Settings pane you can manually adjust
the start and end points of the peak within the column performance phase range.
Adjustments to the start and end points appear in the relevant column of the
Column Performance table in the bottom pane. You can also adjust the start and
end points on the Column Performance table. These changes appear at the
appropriate points on the chromatogram.
To change the peak start or end points on the chromatogram
 Drag the peak’s start and/or end marker to the adjusted time value.
To change the peak start or end points on the Column Performance table
 Type the adjusted time value in the relevant column.
To undo the adjustment
 Click Undo in the Manual Adjustment tab.
To redo the adjustment
 Click Redo in the Manual Adjustment tab.
Displaying Column Performance Results — the
Chromatogram
The chromatogram displays the column performance analysis peak as hatched and
shaded. The peak’s start, end, and apex are indicated by small vertical lines at the
relevant x points.
The retention time or column volume appears near the line of the peak apex.
Start Peak appears as a continuous vertical line located at the relevant x point.
End Peak appears as a dashed vertical line located at the relevant x point.
Pausing the pointer on a peak start, end, area, or apex displays a tooltip that shows
details of the item.