question about grouping in report template/ intelligent reporting in Open Lab CDS 2.5

Hello

I have a question about grouping in the report template/intelligent reporting in Open Lab CDS 2.5. (what is the difference?)

I am currently working on grouping three different injections of the same sample. The grouping parameters i have currently set to this: =IF(Compound_Name = "" , round(Peak_RetentionTime,2)   , Compound_Name )
This works perfectly for my named peaks, however when an unknown has a retention time of 0.01 more or less in one of the injections, they are obviously not grouped. How can i change my formula to include RT +/- 0.01


  • "I'm wondering if the custom calculation could identify the unknown peaks and then find peaks in other samples within your +/- 0.01 minutes of the peaks in the first injection."
    This is exactly something like i was aiming for!
    Sadly though my colleagues shot my idea down. the peaks need to be grouped together with 100% chance of no errors. Since we cannot find a 100% foolproof way, we decided to only group identified peaks and leave the unidentified in a seperate table.

  • Hi, 

    I had the same problem today. Easy solution based on the Andy Wright CC editor.

    On your group properties dialog box, group on the following expression:

    =Round(Peak_RelativeRetTime,2

    where you can choose the rounded decimals you want to avoid that 0.01 difference.

    Hope it can help you.

    Albert

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