RT reference and RRT fields in Empower 3 Proc Method

I have a method where only the RRT values of the known impurities are listed, not the retention times. When listing in the processing method, im confused as to where to list the values. Is it only in the RRT field and I leave the RT blank? Or do I put the values in both the RRT and Rel RT Field parts? What about the RT Reference, do I just leave that blank?


I have been outspoken about how some Help articles in Empower 3 are quite confusingly worded and unhelpful but without a doubt the worst example of this has been the RT reference and RRT fields, and the explanations for it. All I wanted was simple examples as to how they worked and after reading the articles on Help several times, I am none the wiser as to what they mean, and there are several different interpretations of it too! If anyone who uses these fields regularly could explain in clearer words, maybe with an example that would be great! 

Answers

  • edited July 12
    If you want Empower to show RRT data for peaks (you might be asking for something else):

    In the Components table set your main peak (RRT 1.0) under Relative RT Reference and check Default Pk checkbox for that peak (might work without that).

    In your Peaks table show RT Ratio column where you will see the RRT for your peaks.
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