Empower Tip: Empower CDS User Question

In this tip for Empower Chromatography Data System (CDS),  we will answer an Empower CDS user question.

In this tip, I will answer a question asked by numerous Empower users.

Q: How do I create a control chart to plot an attribute of a specified peak or remove a specified peak from a control chart?

In this example, we have a Control Chart to track retention time of peaks throughout a sample set. Acetone is a void volume marker and we do not want it included in the Control Chart.

In the properties of the summary plot, we cannot create a peak-level filter.

If we add a white rectangle to the report and group it with the summary report, the composite group will allow us to create a peak-level filter. Add the white rectangle to the report.

Control-click both groups and from the Edit menu, select ‘Group’.

From the Edit menu, select ‘Composite Properties’.

We can filter using a peak field

Create the condition to filter out the Acetone peak.

Acetone has now been filtered out of the control chart.

It’s that easy!