Hi, I have a question about mouse IL-6 Elisa assay. I am preparing for this Elisa assay, but I am not sure how much dilution that I should do for this assay. My sample is serum from mouse. According to the instruction, it is suggested to start Reagent Diluent optimization for serum and plasma samples by using PBS supplemented with 10-50% animal serum. Does anyone know which one would be better? 10% or 50%? Thank you!