Term: presaturation
https://doi.org/10.1351/goldbook.08395

Definition:
Technique to suppress a particular nuclear magnetic resonance spectroscopy signal where a long low-power pulse is applied to that specific resonance prior to the main pulse sequence.

Note: Presaturation is typically used as a method for solvent suppression.

Link: 
Related Term: nuclear magnetic resonance spectroscopy (http://doi.org/10.1351/goldbook.08218).
Related Term: pulse sequence (http://doi.org/10.1351/goldbook.08396).

Source: PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 700 (https://doi.org/10.1515/pac-2019-0203)

Citation: 'presaturation' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.08395

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.

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