Intrinsic Peak Analysis (IPA) for HRMS Data R package IDSL.IPA version 2.9 A multi-layered untargeted pipeline for high-throughput LC/HRMS data processing to extract signals of organic small molecules. The package performs ion pairing, peak detection, peak table alignment, retention time correction, aligned peak table gap filling, peak annotation and visualization of extracted ion chromatograms (EICs) and total ion chromatograms (TICs). The 'IDSL.IPA' package was introduced in <doi:10.1021/acs.jproteome.2c00120> . Software Depends: R (>= 4.0) Imports: IDSL.MXP, readxl Dinesh Barupal <dinesh.barupal@mssm.edu> Comprehensive R Archive Network (CRAN) Sadjad Fakouri-Baygi [aut] (ORCID: <https://orcid.org/0000-0002-6864-6911>), Dinesh Barupal [cre, aut] (ORCID: <https://orcid.org/0000-0002-9954-8628>) MIT + file LICENSE (https://CRAN.R-project.org/package=IDSL.IPA/LICENSE) 2023-05-31 application/tgz https://CRAN.R-project.org/package=IDSL.IPA doi:10.32614/CRAN.package.IDSL.IPA