Creating an Extracted Absorbance Chromatogram (XAC) (Mariner Data Only)

4.3Creating an Extracted Absorbance Chromatogram (XAC) (Mariner Data Only)

This section describes how to create an Extracted Absorbance chromatogram (XAC) for DAD Mariner data:

•From the Chromatogram window

•From the Spectrum window

From the

Chromatogram

window

To create an extracted absorbance chromatogram (XAC) for a selected wavelength window or range:

1.

Click the Chromatogram window to activate it.

 

2.

Display a TAC or Channel chromatogram by selecting

 

 

Traces from the View menu, then selecting the

 

 

chromatogram.

 

3.

Select Duplicate Active Trace from the Display menu to

 

 

keep the original data displayed after processing.

 

4.

Select Extracted Absorbance from the Process menu or

 

 

click

in the toolbar.

 

5.

In the Extracted DAD Chromatogram dialog box

4

 

(Figure 4-6), click one of the following:

 

 

• Center/Window, then enter the wavelengths

 

 

 

of interest (from 190 nm to 950 nm) and the

 

 

 

window for wavelengths to include.

 

 

 

 

 

 

 

• Range, then enter the From and To values for

 

 

 

wavelengths from 190 nm to 950 nm.

 

Data Explorer™ Software User’s Guide

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