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Analyzing and Processing Data
System User Guide
D5033331 A
AB SCIEX TripleTOF
®
5600/5600+ Instruments
75 of 116
The TWC opens in a pane below the DAD spectrum.
Adjust the Threshold
The threshold is an invisible line drawn parallel to the x-axis of a graph that sets a limit below
which the software will not include peaks in a spectrum. The line has a handle, represented by a
blue triangle to the left of the y-axis. Click the blue triangle to view a dotted line that represents
the threshold. The threshold can be raised or lowered, but changing the threshold value does not
change the data. The software does not label any peaks in the region that lies below the
threshold.
1. Open a data file.
2. Adjust the threshold using one of the following steps:
• To raise the threshold, drag the blue triangle up the y-axis. To lower the
threshold, drag the blue triangle down.
•Click Explore > Set Threshold. In the Threshold Options dialog that opens,
type the threshold value.
•Click Explore > Threshold.
The graph updates to show the new threshold. Peak labeling and the peak list are
also updated.
Tip! Right-click inside the pane containing the DAD spectrum and then
click Show DAD TWC.
Tip! To view the current threshold value, move the pointer over the
threshold handle.
Table 6-6 Right-Click Menu for Chromatogram Panes
Menu Function
List Data Lists the data points and integrates the peaks found in
chromatograms.
Show Spectrum Generates a new pane.
Show Contour Plot Shows a color-coded plot of a data set, where the color represents
the intensity of the data at that point. Only certain MS modes are
supported.
Extract Ions Extracts a specific ion or set of ions from a selected pane and then
generates a new pane containing an extracted chromatograph for the
specific ions.
Show Base Peak
Chromatogram
Generates a new pane containing a base peak chromatogram.
Show ADC Data Generates a new pane containing the UV data trace, if acquired.
Save to Text File Generates a text file of the pane, which can be opened in Excel or
other programs.