VPA Resuspend VPA in DMEM nutrient mix F12 to a final concentration # n7 D0 q" d- \4 ^; A& Q5 } F) B
of 200 mM. Filter-sterilize with a 0.22-μm syringe filter. Next, make ; W) s* L& V; w, v m( O% G500–1,000-μl aliquots and store VPA at − 20 °C for up to 6 months