Ficks law: Difference between revisions
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= ''' | = ''' Fick's Law''' = | ||
==== | ==== Fick's law can be used to measure flux (J). ==== | ||
==== For example when the movement of ions is in a non-equilibrium state, net movement of solute across the membrane. ==== | ==== For example when the movement of ions is in a non-equilibrium state, net movement of solute across the membrane. ==== | ||
| Line 19: | Line 19: | ||
=== Example: === | === Example: === | ||
==== J= ? ==== | ==== J= ? ==== | ||
==== P= 20 moles/cm/second ==== | ==== P= 20 moles/cm/second ==== | ||
| Line 27: | Line 27: | ||
==== J= 20x58= 1160 moles/cm/second ==== | ==== J= 20x58= 1160 moles/cm/second ==== | ||
==== ==== | ==== Therefore flux (J) = 1160 moles/cm/second ==== | ||
==== <ref>Steven L. Jacques, Scott A. Prahl(1998)Fick's 1st law of diffusion [Internet].Oregon Graduate Institute, ECE532 Biomedical Optics, Available from http://omlc.ogi.edu/classroom/ece532/class5/ficks1.html [Accessed 19th October 2013]</ref> ==== | |||
Revision as of 22:15, 19 October 2013
Fick's Law
Fick's law can be used to measure flux (J).
For example when the movement of ions is in a non-equilibrium state, net movement of solute across the membrane.
Equation:
J=P x C
J= Flux (Units= Moles/CM/Second)
P= Permeability (Units= CM/Second)
C= Concentration Gradient for uncharged solute across the membrane (Units= Moles/ CM)
Example:
J= ?
P= 20 moles/cm/second
C= 58 moles/cm
J= 20x58= 1160 moles/cm/second
Therefore flux (J) = 1160 moles/cm/second
- ↑ Steven L. Jacques, Scott A. Prahl(1998)Fick's 1st law of diffusion [Internet].Oregon Graduate Institute, ECE532 Biomedical Optics, Available from http://omlc.ogi.edu/classroom/ece532/class5/ficks1.html [Accessed 19th October 2013]