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2. Impedance–pH monitoring - Wikipedia

   en.wikipedia.org/wiki/Impedance–pH_monitoring

   Impedance–pH monitoring. Impedance–pH monitoring is a technique used in the diagnosis of gastroesophageal reflux disease (GERD), by monitoring both impedance and pH. [ 1][ 2] Patients with ongoing symptoms while on proton-pump inhibitor (PPI) therapy are commonly diagnosed with impedance–pH monitoring while continuing their medications.

3. Esophageal pH monitoring - Wikipedia

   en.wikipedia.org/wiki/Esophageal_pH_Monitoring

   Esophageal pH monitoring. In gastroenterology, esophageal pH monitoring is the current gold standard for diagnosis of gastroesophageal reflux disease (GERD). It provides direct physiologic measurement of acid in the esophagus and is the most objective method to document reflux disease, assess the severity of the disease and monitor the response ...

4. Could you have brain fog? How to tell and what to do. - AOL

   www.aol.com/could-brain-fog-tell-134300121.html

   Diane Von Ah, Ph.D., a registered nurse and distinguished professor at the Ohio State University College of Nursing, has studied brain fog through a specific lens: cognitive impairment that can ...

5. pH meter - Wikipedia

   en.wikipedia.org/wiki/PH_meter

   Beckman model 72 pH meter, 1960. 781 pH/Ion Meter pH meter by Metrohm. A pH meter is a scientific instrument that measures the hydrogen-ion activity in water-based solutions, indicating its acidity or alkalinity expressed as pH. [ 2] The pH meter measures the difference in electrical potential between a pH electrode and a reference electrode ...

6. pH indicator - Wikipedia

   en.wikipedia.org/wiki/PH_indicator

   A pH indicator is a halochromic chemical compound added in small amounts to a solution so the pH ( acidity or basicity) of the solution can be determined visually or spectroscopically by changes in absorption and/or emission properties. [ 1] Hence, a pH indicator is a chemical detector for hydronium ions (H 3 O +) or hydrogen ions (H +) in the ...

7. Electroanalytical methods - Wikipedia

   en.wikipedia.org/wiki/Electroanalytical_methods

   Potentiometry passively measures the potential of a solution between two electrodes, affecting the solution very little in the process. One electrode is called the reference electrode and has a constant potential, while the other one is an indicator electrode whose potential changes with the sample's composition.