Research Article
Simultaneous Voltammetric Determination of Uric Acid, Xanthine, and Hypoxanthine Using CoFe2O4/Reduced Graphene Oxide-Modified Electrode
Figure 3
SEM images of (a) CoFe2O4/carbon spheres and (b) CoFe2O4. (c) TEM image of rGO. (d) SEM image of CoFe2O4/rGO.
| (a) |
| (b) |
| (c) |
| (d) |