Chapter 3 Peak Detection and Labeling

7.Select label attributes:

•Overlapping— Allows labels to be displayed when peaks are close together.

•Peak bounds— Displays peak start, peak end, and baseline.

•Orientation— Specifies Horizontal, 45-degree, or Vertical labels.

8.Select label content to be displayed in addition to m/z:

•Area— Integrated area of peak, displayed with an “A” label.

•Charge State— Charge state of peak, displayed with a “z” label, where the “z” represents a positive or negative charge.

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NOTE: A “z” is displayed for positive or negative ions. To determine the actual charge of the ions, display the Instrument Setting tab in the Data Explorer Output window. See “Output window” on page 1-15for information. Check the listed polarity. For spectra acquired in positive ion mode, positive ions are produced. For spectra acquired in negative ion mode, negative ions are produced.

9.To create custom labels, select User Labels, then click User Label Setup. See Section 3.5.3, Setting Custom Peak Labels.

10.Click OK.

The trace is displayed.

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