GNPS - 2022 CASMI Contest - Raw Data

ABSTRACT: In untargeted assays, approximately 80% of all MS/MS spectra remain unidentified. Yet, the last CASMI contest was performed five years ago. As molecules of former CASMI contests are now well known, new datasets must be provided for testing compound ID strategies in 2022. A new CASMI comparative assessment of small molecule identifications is overdue. Hence, the UC Davis West Coast Metabolomics Center is spearheading such a workshop to take place for the Metabolomics Society 2022 Conference in Valencia, Spain. To make this new CASMI 2022 similar to an actual metabolomics study, we here provide raw LC-accurate mass MS/MS data in both +ESI and - ESI mode, with a list of 500 compounds and their retention times and accurate m/z values. Compounds are not included in public libraries but comprise both metabolites and exposome chemicals. If participants would be interested to participate but would struggle to extract mass spectra from these raw files, please contact us to receive the target MS/MS spectra as an .MSP files. If participants would like to receive .RAW instead of .mzml files for the full chromatograms, please contact us.

INSTRUMENT(S): Unknown

ORGANISM(S): Not Specified

SUBMITTER: Oliver Fiehn  

PROVIDER: MSV000089239 | GNPS | Mon Apr 11 21:51:00 BST 2022

REPOSITORIES: GNPS