ın one of my study i did was like this ''Homogenization of the brain tissues was done as previously described [15]. After homogenization of the tissues in 2 ml of 0.4 M HClO4, 1 ml of the homogenate was centrifuged for 5 min in a Beckman microfuge, and a portion of the supernatant (20 μL) was injected into the HPLC system (Model PU-980 liquid chromatography pump; Jasco, Japan)
15.M. Gürsoy, R.L. BüyükuysalResveratrol protects rat striatal slices against anoxia-induced dopamine release