EMPOWER 3 - Outliers visualisation

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Dear All,

I have the following issue:
I have a four-component mixture which is analyzed by HPLC-ELSD. I do external calibration by injecting different volumes. I also do the same for the unknown samples. After the calibration, I always do the checking whether the compounds fall on the calibration range or not or the detector doesn't cut the signal.
I would like to write a custom field to have visible information about this information whether the analyzed compound fall into the calibration range or not. I know boolean or enumerated custom fields can work.

Unfortunately, I cannot identify "the calibration range and the maximum signal response of the detector" in the calculated formula entry. They are not in the list.

What I would like to see to have an extra column past the identified peaks with the following:
- Accepted
- Cut by detector
- Outliers (out of calibration range)

Do you have any idea ?

Thank you in advance!
Hi ,
Maybe try using MAX( function with ENUM(EQ, LTE and GTE with value 0 = accepted , 1= Cut off and 2 = Outlier
Sorry not in front of Empower at the moment

Okey, but how do you identify the signal limit of the detector and the actual calibration range (min and max) ?

Thanks !
You may have to find the max slice area from the raw data file - not sure what the field name for that would look like.
4 posts Page 1 of 1

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