Displaying and Using I-t Plots

When 3D_Amp data is collected for a sample, I-t Plots can be displayed in the Integration window.

Displaying I-t Plots

Open the sample in the Integration window (see Opening a Sample).
Select Show I-t Plots on the View menu or click the following icon on the Method toolbar:

Two types of I-t plots can be displayed:

Peak I-t plots are I-t plots at the peak apex or at a defined peak height. Peak I-t plots at the peak apex are also called retention time I-t plots.
Time I-t plots are I-t plots corresponding to any selected retention time in the chromatogram. They are not defined by a peak height.

Tips:

3D amperometry data collection is available only with the ED electrochemical detector running in integrated amperometry mode. The Chromeleon PC must also have the 3D Data Acquisition license. To turn on collection of 3D amperometry data, enable the 3D_Amp channel on the ED Options tab page of the Program Wizard or PGM Editor.

I-t plots can also be displayed in the QNT Editor. Plot types and other options are the same as for I-t plots displayed in the Integration window.

Background subtraction is always performed on I-t plots displayed in the Integration and QNT Editor windows.

For more information, refer to:

Displaying Peak I-t Plots

Displaying and Overlaying Time I-t Plots

Displaying Difference, 1st Derivative, or 2nd Derivative I-t Plots