Observation height

{
  "id": "MLC-T-CHM-013357",
  "term": "Observation height",
  "field": "Chemistry",
  "definition": "The vertical distance from the top surface of a nebulizer-burner system to the center of the volume element of the flame that is being observed by the instrument's optical system. This parameter is adjusted to find the region of the flame that provides the optimal analytical signal for a given element. The optimal observation height varies between elements and is typically specified in millimeters.",
  "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-height/"
}