If you mixed it, now you have a liquid that has the benefits of both phenol and chloroform:
(1) denaturate and extract proteins from solutions like Phenol, (2) easy to separate from the water phase.
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So use this mix for the extraction in place of pure phenol. Do not forget to extract the water phase again with the clean choloform for getiing rid of the traces of phenol.
chloroform-isoamyl alcohol is well saturated with the combination of phenol. if you want it to change it into two phases you can call me for detailed description on my email; [email protected] or on mobile 7842771272