I had an idea of what I had planned to buy, but I kinda shelved it a while ago when I was busy with other things
I was gonna use hexane to extract the sample, and chloroform as the eluent. Fast blue BB or B as the developer, I read that it’s best to combine it with NaOH but forget the concentrations, I think it’s .5-1% for the B, but I’ve seen as low as .1%. As far as plates go, I never really got a good answer on that. That RIU post I linked in In House analytics and the other stuff I cited is as deep as I got