mpactr-package {mpactr} | R Documentation |
mpactr: Correction of Preprocessed MS Data
Description
An 'R' implementation of the 'python' program Metabolomics Peak Analysis Computational Tool ('MPACT') (Robert M. Samples, Sara P. Puckett, and Marcy J. Balunas (2023) doi:10.1021/acs.analchem.2c04632). Filters in the package serve to address common errors in tandem mass spectrometry preprocessing, including: (1) isotopic patterns that are incorrectly split during preprocessing, (2) features present in solvent blanks due to carryover between samples, (3) features whose abundance is greater than user-defined abundance threshold in a specific group of samples, for example media blanks, (4) ions that are inconsistent between technical replicates, and (5) in-source fragment ions created during ionization before fragmentation in the tandem mass spectrometry workflow.
Author(s)
Maintainer: Patrick Schloss pschloss@umich.edu (ORCID) [copyright holder]
Authors:
Allison Mason masonar@umich.edu (ORCID)
Gregory Johnson grejoh@umich.edu
See Also
Useful links:
Report bugs at https://github.com/mums2/mpactr/issues