[DIYbio] Re: Non-Platinum Electrophoresis Electrodes That Don't Degrade

I used platinum as a electrode for electrophoresis but I foound a black sediment on positive one after using .does any one k
now the reason?

On Sunday, May 26, 2013 at 10:59:19 PM UTC+4:30, Josiah Zayner wrote:
I have been testing out a bunch of different metals and they either oxidize to death on the minutes timescale or in the case of stainless steel turn the buffer orange/brown.

Platinum wire is pretty expensive ~$1.00 cm^-1. Has anyone had luck with a cheaper metal at 100V or greater with TAE?

I have tried:
Nickel
Stainless Steel 430
Tinned Copper

Thinking of trying Titanium or Nickel Titanium (<= $4 meter^-1). Anyone ever tried these?


Thanks,
     Josiah Zayner


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