Skip to main content
Waters

Use of Empower's Distribution table when performing GPC/SEC - Tip305

Article number: 249482

OBJECTIVE or GOAL

Automatically calculate the percent areas of specific molecular weight slice ranges from the Distribution table.

ENVIRONMENT

  • Empower
  • Tip of the Week #305

PROCEDURE

STEP 1
The example has six ranges (Figure 1).
Figure_1.png

STEP 2
Create one peak Custom Field to calculate the % Area per slice range (Figure 2).
Figure_2.png

STEP 3
The expanded formula is shown as specified. Depending on how many ranges you want to be calculated, you could use the CConst fields found on the slicing tab of the Processing Method (Figure 3).
Figure_3.png

STEP 4
Finally, add these fields to the report. In this example, We create three custom fields for three ranges, and the values add up to 100 as they should (Figure 4).
Figure_4.png

ADDITIONAL INFORMATION

This can be done with either the Pro or QuickStart interface.

Not able to find a solution? Click here to request help.