Horwitz ratio

{
  "id": "MLC-T-CHM-005398",
  "term": "Horwitz ratio",
  "field": "Chemistry",
  "definition": "A metric used to compare the observed interlaboratory reproducibility standard deviation of an analytical method with the predicted standard deviation derived from the Horwitz equation. It indicates how well a method's performance aligns with the expected variability for a given analyte concentration. A Horwitz ratio close to unity suggests that the method's reproducibility is within acceptable limits for chemical analysis.",
  "synonyms": [
    "Horrat"
  ],
  "subject": "Analytical Chemistry",
  "see_also": [
    "Horwitz equation",
    "chemical analysis",
    "fitness for purpose",
    "repeatability condition of measurement"
  ],
  "references": [
    "PAC, 2021, 93, 997. 'Metrological and quality concepts in analytical chemistry (IUPAC Recommendations 2021)' on page 1026 (https://doi.org/10.1515/pac-2019-0819)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/horwitz-ratio/"
}