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Chapter 2 Using Chromatogram and Spectrum Windows
2-30 Applied Biosystems
2
2.4.10 Viewing Trace Labels
The Data Explorer software includes a label in the trace
header to identify the type of data displayed.
NOTE: Trace labels are applied by the software and cannot
be removed.
Chromatogram
trace labels
Labels in the chromatogram title identify the following types of
displayed data:
Chromatogram Trace
Label
Description
BC Baseline corrected
BO Baseline offset
BP Base Peak mass and intensity
CNL Constant neutral loss chromatogram
EF Event filtered chromatogram (MS Method data only)
Mass xxx:yyy Extracted ion chromatogram for a mass range where xxx
is the starting mass and yyy is the ending mass
NFX Noise-filtered trace, where X is the applied Correlation
Factor
NRX Noise-removed trace, where X is the number of standard
deviations of noise removed
SMX Smoothed trace, where X is the number of smoothing
points applied
TAC Total absorbance chromatogram
+ TAC Realigned total absorbance chromatogram
XAC Extracted absorbance chromatogram