Title: intraparticle volume of the column Long Title: IUPAC Gold Book - intraparticle volume of the column DOI: 10.1351/goldbook.11549 Status: current Definition Volume of the mobile phase within the pores of the particles in the stationary phase. Note The retention time equivalent to \(V_{\rm{i}}\) is \(t_{\rm{i}}\) \[t_{\rm{i}} = \frac{V_{\rm{i}}}{F_{\rm{c}}}\] Related Term - retention time: https://goldbook.iupac.org//terms/view/09963 Source - PAC, 2017, 90, 181. 'Terminology of separation methods (IUPAC Recommendations 2017)' on page 210 (https://doi.org/10.1515/pac-2017-0111) Other Outputs - html: https://goldbook.iupac.org/terms/view/11549/html - json: https://goldbook.iupac.org/terms/view/11549/json - xml: https://goldbook.iupac.org/terms/view/11549/xml Citation: Citation: 'intraparticle volume of the column' 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.11549 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: 2026-07-26T23:22:38+00:00