HP Data Explorer 4 4.1 Overview, Types of Mariner data

Chapter 4 Examining Chromatogram Data

4.1 Overview

Types of Mariner data

This section includes:

•Types of Mariner data

•Types of Voyager data

•Creating macros to combine processing functions

•Returning to the original trace

You can display different types of chromatogram traces from Mariner data files by selecting Traces from the Display menu with the Chromatogram window displayed, then selecting:

	Select	To display
	TIC	Total Ion Chromatogram, which includes the entire mass range
		saved in the data file. Each data point represents the sum of all ion
		intensities in the corresponding spectrum.
	BPI	Base Peak Intensity trace, which includes only the base peak in
		each spectrum. Each data point represents the single most intense
		ion in the corresponding spectrum.
	Analog	Trace of the input from an outside source representing any signal
		that changes over time, for example, the UV signal from an
		LC system, or the Analyzer Temperature, Air Temperature, Spray
4		Tip Potential, or Nozzle Temperature from the Mariner mass
		spectrometer.
	DAD TAC	Diode Array Detector (DAD) Total Absorbance Chromatogram
		(TAC), which displays data acquired from LC samples.
		Hint: To display spectra for DAD data, double-click the TAC or
		Ch Absorbance trace.
	DAD	Diode Array Detector Channel chromatograms, which display
	Channel N	specific wavelength ranges, where N is the channel number set
		during acquisition. The data file can include up to five channels.
		Hint: To display spectra for DAD data, double-click the TAC or
		Ch Absorbance trace

4-2 Applied Biosystems