Linearity of a measuring system

{
  "id": "MLC-T-CHM-006636",
  "term": "Linearity of a measuring system",
  "field": "Chemistry",
  "definition": "The extent to which the response of an analytical measuring system is directly proportional to the concentration or amount of the analyte over a specified range. A linear system yields a calibration curve that approximates a straight line. This characteristic is typically assessed by statistical methods, such as regression analysis, to determine the correlation coefficient.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "linearity of calibration",
    "procedure validation"
  ],
  "references": [
    "PAC, 2021, 93, 997. 'Metrological and quality concepts in analytical chemistry (IUPAC Recommendations 2021)' on page 1008 (https://doi.org/10.1515/pac-2019-0819)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/linearity-of-a-measuring-system/"
}