HP Data Explorer 4 Series User Manual

Page 136

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Chapter 3 Peak Detection and Labeling

3-38

Applied Biosystems

3

Contents

of peak list

The peak lists contain the following information.

Chromatogram

peak list

Each entry represents one chromatographic peak in the trace
and includes:

•

Index, a sequential number assigned to each entry in
the peak list

•

Spectrum # or retention time (minutes), determined by
the command selected from the Display menu

•

Lower bound (spectrum # or minutes)

•

Upper bound (spectrum # or minutes)

•

Peak height (calculated relative to zero)

•

Peak area (calculated relative to local baseline)

Spectrum peak list

Each entry represents one spectral peak in the trace and
includes:

•

Index, a sequential number assigned to each entry in
the peak list

•

Centroid or Apex mass (reflects the Mass Type
selected in the Peak Label dialog box)

•

Lower bound (m/z)

•

Upper bound (m/z)

•

Charge (z)

•

Peak height

•

Relative intensity (calculated relative to zero, not to
baseline)

•

Peak area (calculated relative to local baseline)

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