Apex current

{
  "id": "MLC-T-CHM-000727",
  "term": "Apex current",
  "field": "Chemistry",
  "definition": "The highest value of the alternating current at a maximum, called an apex, when the alternating current is plotted against the applied potential in tensammetry. The apex arises when a non-electroactive substance adsorbs onto or desorbs from the indicator electrode, and the matching applied potential is the apex potential. It marks a non-faradaic process, unlike a summit, which results from charge transfer.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "adsorption",
    "alternating current",
    "applied potential",
    "desorption",
    "electroactive substance",
    "indicator electrode"
  ],
  "references": [
    "PAC, 1985, 57, 1491. 'Recommended terms, symbols, and definitions for electroanalytical chemistry (Recommendations 1985)' on page 1494 (https://doi.org/10.1351/pac198557101491)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/apex-current/"
}