Zone pH

{
  "id": "MLC-T-CHM-012816",
  "term": "Zone pH",
  "field": "Chemistry",
  "definition": "The specific pH value within a discrete zone of a separation medium, particularly in techniques like isoelectric focusing or pH-zone-refining chromatography. In these methods, a stable pH gradient is established, and charged molecules migrate until they reach a zone where their net charge is zero, corresponding to their isoelectric point. This pH value is characteristic of the substance that has accumulated in that particular zone.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "pH-zone-refining counter-current chromatography"
  ],
  "references": [
    "PAC, 2017, 90, 181. 'Terminology of separation methods (IUPAC Recommendations 2017)' on page 205 (https://doi.org/10.1515/pac-2017-0111)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/zone-ph/"
}