Control sample

{
  "id": "MLC-T-CHM-002524",
  "term": "Control sample",
  "field": "Chemistry",
  "definition": "A sample with a known or assigned value that is analyzed alongside unknown samples to assess the accuracy and precision of an analytical method. It serves as a benchmark to verify the reliability of the measurement process. The results from a control sample are often plotted on a control chart.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "test portion"
  ],
  "references": [
    "PAC, 1989, 61, 1657. 'Nomenclature for automated and mechanised analysis (Recommendations 1989)' on page 1660 (https://doi.org/10.1351/pac198961091657)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/control-sample/"
}