Empower Tip: Browse Projects

There are times when we might want to visually compare calibration curves by overlaying them.

The reasons for this are:

Method Validation where we want a visual check of the consistency of the slope of the calibration curve

Visual check of change in response over time

Please note that you must log into Empower with the Pro interface to use this feature.

Starting on the Curves tab in Browse Project, highlight two or more curves. Right-click on one of the highlighted curves and select Compare.

The Compare window opens, and we see an overlay of the calibration curves in the upper half of the window and a list of the curves we chose to work within the lower half of the window.

The curve highlighted in red in the table is active. (If you click the row number for one of the other curves that curve becomes the active one.)

If you click the Individual Points tab in the lower-left corner of the window it displays the individual point table for the active curve.

There is more information regarding the calibration curve points than what is displayed in this table. Right-click in the table and select Point Information.

This opens a much more detailed table. Scroll to the right to see the other fields of information.

The plot can easily be modified by right-clicking in the plot and selecting Properties.

Select the LC Calibration tab to select which points you want to be displayed. You can select the overlay tab to change the way the curves are displayed, such as overlay in the stack plot.