Tip for Optimizing the Speed of Processing Data for TraceFinder 4.0 and later

TraceFinder 4.0 introduced the ability to perform target analysis on peptide sequences. Given that these chemical analysis methods can be very long (i.e. 3hours for a single sample) and have drastically shifting retention times between samples, TF 4.0 introduced the Extraction Time Window as a peak detection setting.

This new setting allows the user to set a window around where the peak might elute. The default setting is 3 minutes, which means +/- 1.5 minutes from the expected retention time.

This setting may be a bit wide for stable chromatography. A typical setting for the Extraction Time Window is 1 minute or +/- 30 seconds from the expected retention time. This setting can be changed in the Master Method Template or the Local Method.  This new setting can then be pushed to all the compounds with two mouse clicks or can be optimized for each target peak, clicking the Three Lined Button in the right coner of the settings page and selecting “Apply current extraction window settings to all peaks in the method

Since the amount of data being extracted for the targeted peak is reduced, the amount of time per peak analysis is reduced. This setting is separate from the Peak Detection and View Width Window under the Retention Times Tab.

capture

Peak Extraction Window

About humphrjk

Product Manager for Analytical Software for Chemist. Analytical Chemist, Mass Spectrometry Scoutmaster Troop 4277 Skipper Ship 4277 Vice Commodore Texas Sea Scouts

Posted on February 24, 2017, in Data Review, Method Development, System Properties, TF 4.1, TraceFinder 4.0, Troubleshooting, Tutorial and tagged , , , . Bookmark the permalink. Leave a comment.

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