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How to create a custom field in Empower to show amount as a percentage of the sample weight - WKB3841

Article number: 3841


Create a custom field that will take the amount of an unknown sample and display that as a percentage of the sample weight.


  • Empower
  • Empower 2
  • Empower 3


  1. Close any project or "run samples" window that is using the project where this field will reside.
  2. Open Configure System from the main Empower window.
  3. Find the project, highlight it, then right click on it and choose Properties.
  4. In the new window, click the Custom Fields tab.
  5. Click "New" at the bottom of the window.
  6. Set the Field Type as "Peak".
  7. Set the Data Type as "Real".
  8. Click "Next" at the bottom of the window.
  9. Leave Data Source as "Calculated".
  10. Set Search Order to "Result Set Only".
  11. Set Sample Type to "Unknowns Only".
  12. Click "Next" at the bottom of the window.
  13. In the bottom left portion of the window, scroll until you find "Amount", then double click it.
  14. In the bottom right portion of the window, double click the "*" symbol.
  15. Now enter "100" by typing it on the keyboard.
  16. Click "Next" at the bottom of the window.
  17. Set the Width and Precision accordingly.
  18. Click "Next" at the bottom of the window.
  19. Enter a name for this field. This will be the name of the column that is displayed in the Empower Peaks table within Review, and on the report.
  20. Process any data that will need this value displayed.


This article explains how to create the custom field, but bear in mind that you first must be using a Sample Weight in the Sample Set for the unknown samples.

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