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

Data Explorer

™

Software User’s Guide 4-13

4.3 Creating 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

(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.

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