Equilibrium potential across a cell's membrane (the Goldman-GHK equation)

Formula

Equilibrium potential across a cell's membrane (the Goldman-GHK equation) formula
Em
equilibrium potential across a cell\'s membrane
PK
permeability for K+
PNa
permeability for Na+
PCl
permeability for Cl-
Kout
extracellular concentration of K+
Naout
extracellular concentration of Na+
Clout
extracellular concentration of Cl-
Kin
intracellular concentration of K+
Nain
intracellular concentration of Na+
Clin
intracellular concentration of Cl-
T
temperature

Formula description

The Goldman-Hodgkin-Katz voltage equation, more commonly known as the Goldman equation is used in cell membrane physiology to determine the equilibrium potential across a cell`s membrane taking into account all of the ions that are permeant through that membrane. Usually we consider a membrane separating two solutions containing K+,Na+, Cl-.

Calculator (how to use calculator?)

Equilibrium potential across a cell's membrane (the Goldman-GHK equation) formula
PK
PNa
PCl
Kout
Naout
Clout
Kin
Nain
Clin
T
Em
Precision

Formula code

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References

  1. Wikipedia: the equilibrium potential across a cell's membrane (the Goldman/GHK equation).

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