Guinier plot

{
  "id": "MLC-T-CHM-005060",
  "term": "Guinier plot",
  "field": "Chemistry",
  "definition": "A graphical method used in small-angle scattering (SAS) to determine the radius of gyration (Rg) of particles in a dilute solution. It involves plotting the natural logarithm of the scattered intensity against the square of the scattering vector. The slope of the linear region at small angles yields Rg.",
  "subject": "Polymer",
  "see_also": [
    "excess Rayleigh ratio",
    "particle scattering function",
    "radius of gyration",
    "scattering",
    "scattering angle",
    "scattering vector"
  ],
  "references": [
    "Purple Book, 1st ed., p. 67 (http://old.iupac.org/publications/books/author/metanomski.html)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/guinier-plot/"
}