Spectral bandwidth error

{
  "id": "MLC-T-CHM-011123",
  "term": "Spectral bandwidth error",
  "field": "Chemistry",
  "definition": "The deviation in absorbance or transmittance measurements caused by the finite width of the spectral band passed by a monochromator, rather than an infinitely narrow wavelength. This error arises because the instrument measures an average of absorbance over a range of wavelengths, not at a single point. It becomes more pronounced when the spectral bandwidth is a substantial fraction of the absorption band's natural width.",
  "subject": "Analytical Chemistry",
  "references": [
    "PAC, 1988, 60, 1449. 'Nomenclature, symbols, units and their usage in spectrochemical analysis - VII. Molecular absorption spectroscopy, ultraviolet and visible (UV/VIS) (Recommendations 1988)' on page 1456 (https://doi.org/10.1351/pac198860091449)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/spectral-bandwidth-error/"
}