| 11. | A cloud of electrons will surround any charge with an approximate radius known as the Debye length.
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| 12. | There are also general electroacoustic theories that are valid for any values of Debye length and Dukhin number.
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| 13. | The upper cut-off to the impact parameter should thus be approximately equal to the Debye length:
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| 14. | This is important in concentrated dispersions and emulsions when distances between particles become comparable with the Debye length.
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| 15. | When there is an increased salt concentration in the lumen of the capillary, the debye length decreases.
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| 16. | However, Debye length must be important for electrophoresis, as follows immediately from the Figure on the right.
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| 17. | This model is valid for most aqueous systems, where the Debye length is usually only a few nanometers.
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| 18. | As salt concentration increases, the Debye length decreases due to the ions in solution screening the surface charge.
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| 19. | Because a higher concentration leads to a shorter Debye length for the electrical double layer at the channel wall.
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| 20. | This propagator is the same as the massive Coulomb propagator with the mass equal to the inverse Debye length.
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