Title: normal-phase chromatography Long Title: IUPAC Gold Book - normal-phase chromatography DOI: 10.1351/goldbook.N04214 Status: current Definition An elution procedure in which the stationary phase is more polar then the mobile phase. This term is used in liquid chromatography to emphasize the contrast to reversed-phase chromatography. Related Terms - chromatography: https://goldbook.iupac.org//terms/view/C01075 - elution: https://goldbook.iupac.org//terms/view/E02042 - reversed-phase chromatography: https://goldbook.iupac.org//terms/view/R05376 Source - PAC, 1993, 65, 819. 'Nomenclature for chromatography (IUPAC Recommendations 1993)' on page 826 (https://doi.org/10.1351/pac199365040819) Other Outputs - html: https://goldbook.iupac.org/terms/view/N04214/html - json: https://goldbook.iupac.org/terms/view/N04214/json - xml: https://goldbook.iupac.org/terms/view/N04214/xml Citation: Citation: 'normal-phase chromatography' 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.N04214 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: 2026-07-31T14:30:14+00:00