PPC control elements
The PPC control elements provide result data of the PPC control.
Example
See the following abstract from an example report with the PPC control elements:

For a detailed description of this type of assay element, see the Assay elements topic.
Available elements
The following table describes the PPC control elements. For each PPC control sample, there is a subsection ('PPCC1,' 'PPCC2,' …).
Key | Description | Entry in Validity column | Usage |
---|---|---|---|
Name |
Name of the PPC control sample |
no |
mandatory |
Activity |
Activity of the PPC control sample |
no |
mandatory |
CV(%) |
CV (coefficient of determination) of the PPC control sample in percent, per step |
no |
mandatory |
Recovery(%) |
Recovery of the PPC control sample in percent |
no |
mandatory |
Special values for the Activity element
For the Activity element in the report, in certain cases it is not possible to calculate a real numerical value.
Value |
Possible reasons |
Remarks |
---|---|---|
(empty string) |
No valid responses |
|
NaN (Not a Number) |
Every valid response matches one of the following criteria: |
|
|
||
|
Fallback if NaN values are generated during the calculation (for example: Response > upper asymptote) |
|
|
Can only occur with the 4-parameter logistic model, as the linear model is delogarithmized to calculate the interpolated dose. |