Title: direct liquid introduction Long Title: IUPAC Gold Book - direct liquid introduction DOI: 10.1351/goldbook.12394 Status: current Definition Direct delivery of a liquid sample at a low solvent flow rate into the chemical ionization ion source of a mass spectrometer. The solvent vapour can act as the reagent gas. Related Term - reagent gas: https://goldbook.iupac.org//terms/view/12546 Source - PAC, 2013, 85, 1515. 'Definitions of terms relating to mass spectrometry (IUPAC Recommendations 2013)' on page 1538 (https://doi.org/10.1351/PAC-REC-06-04-06) Other Outputs - html: https://goldbook.iupac.org/terms/view/12394/html - json: https://goldbook.iupac.org/terms/view/12394/json - xml: https://goldbook.iupac.org/terms/view/12394/xml Citation: Citation: 'direct liquid introduction' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.12394 License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. Collection: If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . Disclaimer: The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. Accessed: 2025-11-01T08:33:42+00:00