(redirected from Potentiometry)
Also found in: Dictionary, Thesaurus, Encyclopedia.
Related to Potentiometry: Potentiometric titration


1. An instrument used for measuring small differences in electrical potential.
2. An electrical resistor of fixed total resistance between two terminals, but with a third terminal attached to a slider that can make contact at any desired point along the resistance.
[L. potentia, power, + G. metron, measure]


Etymology: L, potentia + Gk, metron, measure
a voltage-measuring device.


A voltmeter.

calibration potentiometer

A mechanically adjusted resistance used as a calibration control on many instruments. It adjusts a voltage or current within the device.
References in periodicals archive ?
We analyzed samples before and after ultracentrifugation (Airfuge; Beckman Coulter; 15 min at 107 000g) by indirect ISE potentiometry (Modular) and direct ISE (Rapidlab 865; Bayer).
Potassium ion concentration on the LX20 is determined by indirect potentiometry, using an ISE with a valinomycin ionophore (1).
The Abbott Aeroset[R] is an automated, discrete, random-access clinical chemistry analyzer with a stated throughput of up to 2000 tests per hour and is capable of rate and end-point photometry, turbidimetry, and potentiometry.
Coulometric Titrations II-5 Applications of Karl-Fischer Titrators II-5 Other Titration Techniques II-6 Prelude to Potentiometry II-6 Potentiometric Titrations II-6 Types of Potentiometric Titrators II-7 Potentiometric Automatic Titrator II-7 Potentiometric Titrator for Karl Fischer Moisture Analysis II-7 Dual Recordomatic Titrator II-7 Thermometric Titrations II-7 Amperometric Titrations II-7 Advantages of Amperometric Titration II-7
Incomplete recovery of sodium determined in direct potentiometry in blood samples added with heparin salts.
The ISE chemistry uses an electrode containing a valinomycin membrane in conjunction with a reference electrode to determine potassium activity via indirect potentiometry.
Determination of lead in microliter amounts of whole blood by stripping potentiometry.
Sodium measurements and proteincontents: a single test to compare flame photometry, corrected and uncorrected potentiometry [Abstract].
Electrolytes are determined through ion-selective electrode potentiometry, glucose through amperometry, hematocrit through conductometrics, and pH through direct potentiometry.