Cross polarization

{
  "id": "MLC-T-CHM-002706",
  "term": "Cross polarization",
  "field": "Chemistry",
  "definition": "A technique in nuclear magnetic resonance (NMR) spectroscopy, particularly in solid-state NMR, that transfers magnetization from abundant, rapidly relaxing nuclei (e.g., protons) to less abundant or slowly relaxing nuclei (e.g., carbon-13). This process enhances the signal-to-noise ratio of the less sensitive nuclei. It relies on dipolar coupling between the two types of nuclei.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "signal-to-noise ratio",
    "solid-state nuclear magnetic resonance spectroscopy"
  ],
  "references": [
    "PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 685 (https://doi.org/10.1515/pac-2019-0203)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/cross-polarization/"
}