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Database Infrastructure for Mass Spectrometry - Pyrrolizidine Alkaloids in Dietary Supplements

Published by National Institute of Standards and Technology | National Institute of Standards and Technology | Catalog Last Checked: September 10, 2026 at 05:53 PM | Dataset Last Updated: March 03, 2025
Data here contain and describe an open-source structured query language (SQLite) portable database containing high resolution mass spectrometry data (MS1 and MS2) for pyrrolizidine alkaloids (PAs) and associated metadata regarding their measurement techniques, quality assurance metrics, and the samples from which they were produced. These data are stored in a format adhering to the Database Infrastructure for Mass Spectrometry (DIMSpec) project. That project produces and uses databases like this one, providing a complete toolkit for non-targeted analysis. See more information about the full DIMSpec code base - as well as these data for demonstration purposes - at GitHub (https://github.com/usnistgov/dimspec) or view the full User Guide for DIMSpec (https://pages.nist.gov/dimspec/docs). Files of most interest contained here include the database file itself (pa_database.sqlite) as well as an entity relationship diagram (ERD.png) and data dictionary (DIMSpec for PAs_1.0.1.20230615_data_dictionary.json) to elucidate the database structure and assist in interpretation and use.

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