Phase correction

{
  "id": "MLC-T-CHM-008732",
  "term": "Phase correction",
  "field": "Chemistry",
  "definition": "A computational procedure applied to Fourier transform spectra, especially in nuclear magnetic resonance (NMR), to correct for frequency-dependent phase errors. These errors, introduced during signal acquisition and processing, distort the spectral lineshapes by mixing absorptive and dispersive components. The correction process involves adjusting a zero-order (frequency-independent) and a first-order (frequency-dependent) phase constant until all peaks in the spectrum have a pure absorption lineshape.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "nuclear magnetic resonance spectrum"
  ],
  "references": [
    "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)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/phase-correction/"
}