How to Process a Calibration with Disabled Points in OpenLab CDS 2.6 or Later

Answer

This Information Applies To: OpenLab CDS version 2.6 or later.

Contents

This article describes how to process a calibration when some calibration points have been disabled, using OpenLab CDS software version 2.6 or later.

Background

In previous OpenLab CDS versions until 2.5, every calibration standard injection used an interim calibration curve. Amounts in standards and samples were calculated based on those curves.
In OpenLab CDS 2.6 and later a unique calibration curve is used for all samples and standards.

As soon as data gets reprocessed in OpenLab CDS 2.6 and later, the calibration curves will be updated.
Every injection within a calibration cycle will show the same calibration curve.
Amounts and concentrations are calculated using the complete calibration curves.

Note: For other versions of the software, see the article: How to Process a Calibration with Disabled Points in OpenLab CDS 2.1 to 2.5

Steps to Follow

1. Right click the calibration point you would like to disable to display a context menu, then select Disable calibration point. (Figure 1)
   

   
   
   Figure 1. Disabling a calibration point
   
   

   This calibration point is now disabled. The change is stored in the Data Processing Method in OpenLab CDS 2.6 or later. (Figure 2)
   

   
   
   Figure 2. Disabled calibration point is shown by a red X on the calibration curve
   
   

2. To reprocess sample data using this modified calibration curve, click Reprocess All, then click Save all Results, and finally click Print All. (Figure 3)
   

   
   
   Figure 3.  Print All
   
   

3. Save the Processing Method by clicking the Save Method button. Any modified calibration points are now saved with processing method. (Figure 4)
   
   

   
   
   Figure 4. Saving the method
   

Tips: Reprocessing data does not change the disabled point back to enabled. The calibration point would need to be re-enabled and the Processing method saved again.

Learn how to effectively operate your Agilent OpenLab CDS software:  Agilent OpenLab CDS - Data Analysis Reference user manual on Agilent.com