Equilibrium sedimentation

{
  "id": "MLC-T-CHM-004069",
  "term": "Equilibrium sedimentation",
  "field": "Chemistry",
  "definition": "A method for determining the molar mass and polydispersity of macromolecules in solution by subjecting them to a centrifugal field until a steady-state concentration gradient is established. At equilibrium, the rate of sedimentation equals the rate of diffusion. This technique is performed using an analytical ultracentrifuge.",
  "subject": "Polymer",
  "see_also": [
    "dilute solution",
    "sedimentation equilibrium"
  ],
  "references": [
    "Purple Book, 1st ed., p. 62 (http://old.iupac.org/publications/books/author/metanomski.html)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/equilibrium-sedimentation/"
}