[DIYbio] gel box electrodes

On 11/09/2012 02:00 AM, Patrik D'haeseleer wrote:
> Graphite electrodes is a good idea. Of course, you still need to connect the graphite electrode to a wire somewhere, and you may
> need to protect that connection point if it's immersed in the liquid.

Getting long graphite to use as electrodes should be easy, but fragile.
The point of connection to metal can be offset from the lanes some and any
corrosion products would not get in your electrophoresis lanes.
Graphite strips or rods, (pencil leads), could just push fit into bent wire clips
of stainless steel. The whole gel box should be dishwasher safe, so it's not a trivial design.

One long rod could be below gel level in a tray, and another rod push down to contact it
from out of the gel, and have spring force when the gel box lid closes to make good contact.
With a gel box shape design that protects the graphite pieces from impacts,
yet lets dishwasher action clean well, you'd then have no metal in the medium.


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