Clark electrode - Wikipedia
The Clark electrode [1] [2] is an electrode that measures ambient oxygen partial pressure in a liquid using a catalytic platinum surface according to the net reaction: [3] O 2 + 4 e − + 4 H + → 2 H 2 O. It improves on a bare platinum electrode by use of a membrane to reduce fouling and metal plating onto the platinum. [4]
The Membrane-Covered Clark Dissolved Oxygen Sensor
This article provides a history of the Clark cell for dissolved oxygen measurements. It discusses the basic design of a polarographic sensor, the oxygen reduction reaction, the oxidation reaction at the counter electrode, and how diffusion changes the detected concentration.
Clark Oxygen Electrode: Principle and Limitations
Clark Oxygen Electrode is a silver-platinum electrochemical cell whose electrodes are covered by non-conductive membranes. They are used to measure gaseous or solubilized oxygen in the liquid.
Clark Electrode - an overview | ScienceDirect Topics
A pO2 sensor, also widely known as a Clark electrode, is used to measure the partial pressure of O2 gas in a sample of air or blood. From: Introduction to Biomedical Engineering (Third Edition), 2012
Principles of oxygen measurement with the Clark electrode
Dec 18, 2023 · The Clark Oxygen Electrode. The principles of amperometric oxygen measurement are discussed at some length in the chapter on the platinum oxygen cathode. The major difference between this electrode and the earlier oxygen cathode is the addition of an oxygen-permeable membrane.
Leland Clark - Wikipedia
Leland C. Clark Jr. (December 4, 1918 – September 25, 2005) was an American biochemist born in Rochester, New York. [1] He is most well known as the inventor of the Clark electrode, a device used for measuring oxygen in blood, water and other liquids. [2]
Oxygen sensor - Wikipedia
The Clark-type electrode is the most used oxygen sensor for measuring oxygen dissolved in a liquid. The basic principle is that there is a cathode and an anode submersed in an electrolyte.
Clark’s invention as the Clark electrode is still used by many manufacturers and in several YSI instruments. In addition to the variety of Clark electrodes offered, YSI also manufactures optical based dissolved oxygen sensors for laboratory, spot sampling and long term monitoring applications. See
Clark electrode - OpenAnesthesia
Mar 2, 2015 · The Clark electrode was invented by Leland Clark after criticism that his bubble oxygenator, which he had invented for use in cardiac surgery, was unable to measure the oxygen tension of the blood returning to the patient from the bypass circuit.
Oxygen Electrode - an overview | ScienceDirect Topics
An oxygen electrode, also known as a polarographic electrode or Clarke electrode, is a device consisting of a gold or platinum cathode and a silver/silver chloride anode in a potassium chloride solution. It measures the concentration of oxygen by applying a DC voltage across the electrodes and measuring the current flow between them.