Urine

{
  "id": "MLC-T-CHM-012468",
  "term": "Urine",
  "field": "Chemistry",
  "definition": "A biological fluid produced by the kidneys through the filtration of blood to remove metabolic waste products and excess water. It is composed primarily of water (about 95%), along with urea, creatinine, uric acid, and inorganic salts. For bioanalytical purposes, urine is a common matrix for monitoring drug metabolites, endogenous biomarkers, and exposure to environmental toxins, with 24-hour collection providing a time-averaged sample.",
  "subject": "Analytical Chemistry",
  "references": [
    "PAC, 2018, 90, 1121. 'Terminology of bioanalytical methods (IUPAC Recommendations 2018)' on page 1126 (https://doi.org/10.1515/pac-2016-1120)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/urine/"
}