If you want scale on the peak of a certain compound, and you do not know how many other compounds there are and which peak heights they have, you can use a customized expression to scale on the correct peak.
In the Multi Signal Plot Properties, select the Signal Axis page.
Under Scaling, select All Signals in Given Scale.
Click to the right of the To field.
The Expression Editor opens.
Enter the following expression:
| Expression |
Description |
|---|---|
| =iif(UCase( Compound_Name)="TRAMADOL", Peak_Height*1.05, "") |
This expression returns the height of the Tramadol peak, multiplied by 1.05. "Tramadol" may be written in uppercase or lowercase in the method. |
Save the settings.