Peak Detection

3.If peak detection is not acceptable, leave the Use Resolution Dependent Settings option enabled, and adjust the following global threshold parameters in the following order:

•%Base Peak Intensity— Use this parameter to eliminate peaks with an intensity below the specified threshold. This threshold is represented as a percentage of the intensity of the base peak.

•%Max Peak Area— Use this parameter to fine-tune noise discrimination on the baseline or noise spikes on peaks. This threshold is represented as a percentage of the area of the peak with the largest area and is calculated above the local baseline.

To determine an appropriate threshold, display the

Spectrum Peak list, note the area of the peak with

the greatest area and the areas of unwanted 3 peaks, and estimate the percentage to enter as

the threshold.

Specifying a %Max Peak Area Threshold is particularly useful if the spectrum includes a rising baseline that would cross a %Base Peak Intensity Threshold and eliminate peaks of interest in one portion of the trace.

4.If peak detection is still not acceptable, adjust the remaining peak detection parameters, as described in Section 3.2.3, Setting Peak Detection Parameters.

Data Explorer™ Software User’s Guide

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