Potentiometry

Potentiometry [OSWe8cedede568546259abe64f62b5ddcb6]
ID	OSWe8cedede568546259abe64f62b5ddcb6
UUID	e8cedede-5685-4625-9abe-64f62b5ddcb6
Label	Potentiometry
Machine compatible name	Potentiometry
Statements (outgoing)

Statements (incoming)

Description

Electrochemical measurement principle where the potential difference between an indicator electrode and a reference electrode is measured.

Item
Type(s)/Category(s)	EmmoTerm

Term

EmmoTerm
Superclass	ElectroanalyticalTechnique MeasurementPrinciple
Comment	For measurements using ion-selective electrodes, the measurement is made under equi- librium conditions what means that the macroscopic electric current is zero and the con- centrations of all species are uniform throughout the solution. The indicator electrode is in direct contact with the analyte solution, whereas the reference electrode is usually separated from the analyte solution by a salt bridge. The potential difference between the indicator and reference electrodes is normally directly proportional to the logarithm of the activity (concentration) of the analyte in the solution (Nernst equation). See also ion selec- tive electrode. [en] Method of electroanalytical chemistry based on measurement of an electrode potential. [en]
URI	http://emmo.info/electrochemistry#electrochemistry_e8cedede_5685_4625_9abe_64f62b5ddcb6

jsondata

uuid

"e8cedede-5685-4625-9abe-64f62b5ddcb6"

name

"Potentiometry"

label

text	"Potentiometry"
lang	"en"

description

text	"Electrochemical measurement principle where the potential difference between an indicator electrode and a reference electrode is measured."
lang	"en"

type

"Category:OSW57beed5e1294434ba77bb6516e461456"

uri

"http://emmo.info/electrochemistry#electrochemistry_e8cedede_5685_4625_9abe_64f62b5ddcb6"

comment

text

"For measurements using ion-selective electrodes, the measurement is made under equi- librium conditions what means that the macroscopic electric current is zero and the con- centrations of all species are uniform throughout the solution. The indicator electrode is in direct contact with the analyte solution, whereas the reference electrode is usually separated from the analyte solution by a salt bridge. The potential difference between the indicator and reference electrodes is normally directly proportional to the logarithm of the activity (concentration) of the analyte in the solution (Nernst equation). See also ion selec- tive electrode."

lang

"en"

text	"Method of electroanalytical chemistry based on measurement of an electrode potential."
lang	"en"

subClassOf

"http://emmo.info/electrochemistry#electrochemistry_10359c79_cdf2_401a_83ee_d22e7fbb2ad1"

"http://emmo.info/electrochemistry#electrochemistry_64bf0969_37a1_4aaf_82e9_68462847ac65"

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