PotentiometricSelectivityCoefficient

PotentiometricSelectivityCoefficient [OSW136744ff05634df7aa034219d70392a0]
ID	OSW136744ff05634df7aa034219d70392a0
UUID	136744ff-0563-4df7-aa03-4219d70392a0
Label	PotentiometricSelectivityCoefficient
Machine compatible name	PotentiometricSelectivityCoefficient
Statements (outgoing)

Statements (incoming)

Description

Parameter defining the ability of an ion-selective electrode to distinguish a particular ion, i.e., a primary ion A from an interfering ion B.

Item
Type(s)/Category(s)	EmmoTerm

Term

EmmoTerm
Comment	The selectivity coefficient is determined by means of the potential difference of the ion- selective electrode in mixed solutions of the primary ion, A, and interfering ion, B (Fixed Interference Method) or, less desirably, in separate solutions of A and B (Separate Solution Method). The activities of the primary ion, A, and the interfering ion, B, at which K is determined should always be specified, as the value of K is defined by a modified Nikolsky-Eisenman equation. The smaller the value of K , the A,B greater the electrode’s preference for the primary ion, A. [en]
Superclass	ElectrochemicalQuantity
Alternative label	SelectivityCoefficient [en] SelectivityConstant [en] SelectivityFactor [en]
URI	http://emmo.info/electrochemistry#electrochemistry_136744ff_0563_4df7_aa03_4219d70392a0

jsondata

uuid

"136744ff-0563-4df7-aa03-4219d70392a0"

name

"PotentiometricSelectivityCoefficient"

label

text	"PotentiometricSelectivityCoefficient"
lang	"en"

description

text	"Parameter defining the ability of an ion-selective electrode to distinguish a particular ion, i.e., a primary ion A from an interfering ion B."
lang	"en"

type

"Category:OSW57beed5e1294434ba77bb6516e461456"

uri

"http://emmo.info/electrochemistry#electrochemistry_136744ff_0563_4df7_aa03_4219d70392a0"

altLabel

text	"SelectivityCoefficient"
lang	"en"

text	"SelectivityConstant"
lang	"en"

text	"SelectivityFactor"
lang	"en"

comment

text

"The selectivity coefficient is determined by means of the potential difference of the ion- selective electrode in mixed solutions of the primary ion, A, and interfering ion, B (Fixed Interference Method) or, less desirably, in separate solutions of A and B (Separate Solution Method). The activities of the primary ion, A, and the interfering ion, B, at which K is determined should always be specified, as the value of K is defined by a modified Nikolsky-Eisenman equation. The smaller the value of K , the A,B greater the electrode’s preference for the primary ion, A."

lang

"en"

subClassOf

"http://emmo.info/electrochemistry#electrochemistry_aecc6094_c6a5_4a36_a825_8a497a2ae112"

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Description

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