how to color the stacking gel?

[Iraz Toprak Aydin]

Hello!

 

I have seen some SDS PAGE gels with red  or orange stacking part that makes
the wells visible. They use phenol red for the red stacking gel. But I
couldn't find the concentration of phenol red they use for this purpose.
Does anybody have any experience in this?

 

Thanks in advance!

 

Iraz Toprak Aydin

 

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