Observation pathlength

{
  "id": "MLC-T-CHM-008172",
  "term": "Observation pathlength",
  "field": "Chemistry",
  "definition": "The length of the path that a beam of radiation travels through the absorbing or emitting medium, specifically the flame, in atomic spectrometry. According to the Beer-Lambert law, absorbance is directly proportional to this pathlength, so a longer pathlength results in a higher signal and greater sensitivity. For slot burners used in flame atomic absorption, this corresponds to the length of the burner slot and is measured in centimeters.",
  "subject": "Chemistry and Human Health",
  "references": [
    "PAC, 1986, 58, 1737. 'Quantities and units in clinical chemistry: Nebulizer and flame properties in flame emission and absorption spectrometry (Recommendations 1986)' on page 1741 (https://doi.org/10.1351/pac198658121737)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/observation-pathlength/"
}