Get Empowered: Browse Projects | Tip #11

By April 5, 2017


Tip #11: Comparing Results from Different Projects

Subscribe to the Empower Tips BlogIn the last Empower Tip of the Week for Empower Chromatography Data Software (CDS), we explored how to search across multiple projects. Today we’re going to learn how to compare results from different projects.

Have you ever had the need to compare results from different projects? Most of us resort to opening and closing individual Projects and looking at the results in their respective projects. Copying results from one project to another would make life easier; however, that is not allowed in some laboratories. An alternative would be to use Global Projects view to compare the results from different projects.

Here is how it’s done.

Step 1

From the Pro Interface select Configure the System (Figure 1).

Empower Software: Configure the system | Figure 1

Figure 1

Step 2

When Configuration Manager opens, highlight two projects, right click on one of the highlighted projects and select Open (Figure 2).

Empower Software: Open Configuration manager | Figure 2

Figure 2

Step 3

This is Global Project View. Let’s go to the Results tab and select results from both projects. Use the View Filter called UV to look at the Channels of data from the UV detector. Highlight one result from each of the projects, right click on one of the highlighted results and select Compare. (figure 3)

Empower Software: Compare global projects view | Figure 3

Figure 3

Step 4

There are different ways we can compare our results. Start by clicking the Overlay tool and the two chromatograms are overlaid in one plot. (figure 4)

Empower Software: Overlay tool | Figure 4

Figure 4

Step 5

Since these two samples were run under different chromatographic conditions, it is difficult to compare them in one plot so let’s make it more user friendly.  Right-click in the plot and select Properties. (figure 5)

Empower Software: Properties view | Figure 5

Figure 5

Step 6

Go to the Overlay tab and under Overlay Type select Make Stack Plot and under Chromatogram Annotation select ‘All Chroms’ in Overlay.  Now we can compare the chromatograms in a more useful way. (figure 6)

Empower Software: Plot properties, stack plot | Figure 6

Figure 6

Step 7

Additionally we can look at the peak information for each result by clicking on the Peaks tab in the lower left corner.  Click on the baseline for the chromatogram of interest and the associated peak information appears. (figure 7)

Empower Software: Peaks tab | Figure 7

Figure 7

 

A couple of final notes:

  1. You must log into Empower with the Pro Interface to take advantage of this feature.
  2. You can switch to an individual Project while you are in Global Projects view by selecting the project from the tree on the left. You can then switch back to Global Projects view.

I hope you found this tip helpful. This concludes our blog series on Browse Projects. In this next blog series, we are going to cover topics related to Data Acquisition and the Sample Set Method.

Next week in Tip #12 – Save instrument method with method set 

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