Applied Biosystems Data Explorer 4 Series User Manual page 119

Table 3-1 Chromatogram Settings (Continued)
Parameter
Filter Width
(continued)
Integration Baseline Settings
NOTE: You can set peak labels to display peak start, peak end, and baseline marks.
See Section 3.5.2, Setting Chromatogram and Spectrum Peak Labels.
Valley-to-Baseline
Valley-to-Valley
Trace Settings
Use same settings
for all traces in view
Hint: Set Filter Width to a number equal to the number of
points across the peak. To determine the number of points
across a peak, you can change the trace display from Line to
Vertical Bars. Each vertical bar represents one data point.
For more information, see Section 1.4, Customizing the Data
Explorer Window.
Drops a vertical line from all valleys to a horizontal baseline.
The level of the horizontal baseline is determined using the
minimum peak valley point (left or right) for each peak. See
Figure 3-25 on page 3-70.
Forces a baseline through all valley points. See Figure 3-25
on page 3-70.
Applies settings to all traces in the active window.
NOTE: In previous versions of Data Explorer software,
peak detection allowed you to specify Peak Width and
Noise Threshold for chromatogram data. The software now
automatically:
Uses a minimum peak width that is equal to the Filter Width,
and a maximum peak width of 10,000 data points.
Calculates the Noise Threshold by performing an automatic
signal-to-noise calculation on a chromatogram and by using
75 percent of the noise value determined as the threshold.
Data Explorer
Description
™
Software User's Guide
Peak Detection
3
3-21