I isolate the monocytes from the peripheral blood and then I want to analyze the different phagocytosis ability in the subpopulations of monocytes by using surface antigen stain and pHrodo E.coli bioparticle. I try to do the 8-colored FACS compensation but the result is terrible. Does anyone know how to do 8-colored FACS compensation for surface antigen and pHrodo E.coli bioparticle?