The average speed of ions is determined by two main factors. First the
force on the ion, which is a product the voltage gradient, and the
charge of the ion, divided by the weight of the ion gives it an
acceleration rate. During this time of acceleration it goes from 0
average velocity (actually a low velocity in a random direction due to
Browning movement) to an ever increasing velocity toward the other
electrode. However before very long, it bumps into another molecule,
losing much or all of it's inertia, and is back to the normal thermal
movement.
I believe the paper at
http://books.google.com/books?id=MX68gp3KYCYC&pg=PA262&lpg=PA262&dq=electrophoresis+velocities&source=web&ots=fjQ7xylbiI&sig=99i_iuIDNiqciABuKXnsLvz9Oo8&hl=en&sa=X&oi=book_result&resnum=1&ct=result#PPA1,M1
covers this is depth but have not read but a few paragraphs since it is
260 or so pages long.
Marshall
Wayne Fugitt wrote:
Evening Marshall,
At 07:16 PM 8/29/2008, you wrote:
The distance between the electrodes comes into play if there is
sufficient time for the ions to travel to the other electrode during
the cycle.
I can visualize that, ....... I think.
Do you know the speed of the ions ?
Trying to visualize if they flow smooth or hop and what all effects
this.
I do not know anything to compare this with.
Maybe IP numbers and hop to hop.
Seems they would not flow all the way in one smooth stretch.
but would move in steps due to something.
But........ likely I am thinking all wrong.
Thanks for any comments or clarification.
Wayne
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