I'm trying to quantify GUS activity using fluorometry method. But I have several things that I would like to confirm:
For standard curve, how should I dissolve 4-Methylumberlliferone (4-MU)? What I have here is 4-MU, not 4-MU sodium salt. If it's 4-MU sodium salt, it can be dissolved in water directly, but since I have 4-MU (not sodium salt type) how should I dissolve it?