Cation exchanger

{
  "id": "MLC-T-CHM-001743",
  "term": "Cation exchanger",
  "field": "Chemistry",
  "definition": "A solid, insoluble material, typically a resin, containing negatively charged functional groups that can reversibly bind and exchange with cations from a surrounding solution. These materials are used in ion-exchange chromatography to separate positively charged species. Common functional groups include sulfonic acid and carboxylic acid groups.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "ion exchanger",
    "cation",
    "counter-ions",
    "ionogenic groups",
    "proton",
    "resin"
  ],
  "references": [
    "PAC, 1993, 65, 819. 'Nomenclature for chromatography (IUPAC Recommendations 1993)' on page 855 (https://doi.org/10.1351/pac199365040819)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/cation-exchanger/"
}