Xtractor is a simple and fast tool for integrating pre-defined regions (peaks or bins) in calibrated mass spectra in two-column ASCII
format using the GD library for generating PNG images of spectra with integrated regions. Xtractor runs from the command line and comes with a number of options:
-i the input ASCII .xy file -r reference list, defining peaks or bins (see example) -o the output filename -b (fixed) background to be subtracted -nographics do not generate graphical output
In addition to extracting the peak or bin areas (total intensities), Xtractor plots the spectra with m/z on the horizontal and intensity on the vertical axis and colors extracted peaks or bins in red. This feature can be disabled with the -nographics option.
Gallery
click on the thumbnails to show full size image
Xtractor was used and described in a recent paper by Selman et al.. The version of Xtractor and data used in this work is deposited here.
Download the Xtractor source code here. (Right-click and choose "Save Link As...".)
