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Operating Instructions — Analyze and Process Data
System User Guide
4500 Series of Instruments
RUO-IDV-05-0264-A
81 of 138
Show Basic Quantitative Data
1. In the
Peak List
tab, right-click and select
Show Peaks in Graph.
Peaks are shown in two colors.
2. To change the peak finding algorithm settings, right-click and then select either
Analyst Classic Parameters
or
Intelliquan Parameters
, which ever is active.
3. (Optional) To remove the colored peaks, right-click in the
Peak List
tab and then
clear
Show Peaks in Graph
.
Chromatograms
Prerequisite Procedure
•
Table 10-4 Chromatograms
Types of Chromatograms Purpose
TIC (Total Ion Chromatogram) A chromatographic display generated by plotting the intensity
of all ions in a scan against time or scan number.
When a data file is opened, it is preset to appear as a TIC. If
the experiment contains only one scan, it is shown as a
spectrum. For more information about using the available
icons, refer to
If the
MCA
check box is selected during acquisition of the data
file, then the data file opens to the mass spectrum. If the
MCA
check box is not selected, then the data file opens with the
TIC.
XIC (Extracted Ion
Chromatogram)
An ion chromatogram created by taking intensity values at a
single, discrete mass value, or a mass range, from a series of
mass spectral scans. It indicates the behavior of a given mass,
or mass range, as a function of time.
BPC (Base Peak
Chromatogram)
A chromatographic plot that shows the intensity of the most
intense ion within a scan versus time or scan number.
TWC (Total Wavelength
Chromatogram)
A chromatographic display created by summing all of the
absorbance values in the acquired wavelength range and then
plotting the values against time. It consists of the summed
absorbances of all ions in a scan plotted against time in a
chromatographic pane.
XWC (Extracted Wavelength
Chromatogram)
A subset of TWC. An XWC shows the absorbance for a single
wavelength or the sum of the absorbance for a range of
wavelengths.
DAD (Diode Array Detector)
A UV detector that monitors the absorption spectrum of eluting
compounds at one or more wavelengths.
Summary of Contents for QTRAP 4500 LC/MS/MS system
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