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Savitzky-Golay resolver


Feature detection → Chromatogram resolving → Savitzky Golay resolver

This method uses the Savitzky-Golay polynomial [1] to calculate the smoothed second-derivative of the chromatogram's intensities.

The following figure (left) presents the shape of a) a Gaussian peak, b) the first derivative, and c) the second derivative.

The figure on the right side shows how the signal (blue line) may be divided into individual chromatographic peaks by observing the second derivative.



  1. A. Savitzky and M. J. E. Golay, Anal. Chem., 36, 1627 (1964). DOI: 10.1021/ac60214a047



This string is added to feature list name as suffix

Original feature list

Defines the processing. Standard is to KEEP the original feature list and create a new processed list.

REMOVE saves memory.

PROCESS IN PLACE is an advanced option to process directly in the feature list and reduce memory consumption more - this might come with side effects, apply with caution.

MS/MS scan pairing

Set MS/MS scan pairing parameters. For more details see MS2 scan pairing

Min peak height

Minimum acceptable feature height (absolute intensity)

Peak duration range

Range of acceptable feature durations

Derivative threshold level

Minimum acceptable intensity in the second derivative for feature recognition

Min # of data points

Minimum number of data points on a feature.


Last update: November 24, 2022 21:13:07