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Empower3 - Pass / Fail R^2 - Custom field

Posted: Mon Mar 20, 2017 7:44 am
by artsjeroen
Hi all,

I'm trying to create a boolean custom field in Empower for an R^2 >= x

I've tried:

GTE((R^2),0.998)

However, R^2 is a result, and for a result custom field I get "A peak/component field cannot be used without SUM, MIN, MAX or AVE when creating a Result type custom field.

All results refer to one calibration curve.
How can this be done?

Re: Empower3 - Pass / Fail R^2 - Custom field

Posted: Mon Mar 20, 2017 10:12 am
by starlion
Simple :
Create a CF type peak that refer to R^2
Use your new CF in your formula

Re: Empower3 - Pass / Fail R^2 - Custom field

Posted: Mon Mar 20, 2017 10:58 am
by artsjeroen
For some reason the R2 is different per standard injection.
I've added a calibrate line at the end of the sample set, but this makes no difference.

Re: Empower3 - Pass / Fail R^2 - Custom field

Posted: Tue Mar 21, 2017 7:37 am
by ydna6969
hi

try this as a guide , though not sure why R2 is different for each standard
Calibration type total maybe:

https://www.waters.com/webassets/cms/li ... riksen.pdf

Re: Empower3 - Pass / Fail R^2 - Custom field

Posted: Sun Apr 30, 2017 7:59 pm
by vofelyp
Hi
Modify the field type to PEAK! It will work.