Research Article

A Novel Carbon Paste Electrode Modified with N1-Hydroxy-N1,N2-Diphenylbenzamidine for the Electrochemical Determination of Cadmium(II) in Environmental Samples

Figure 4

SEM images of (a) unmodified CPE and (b) HDPBA‒CPE. Voltage: 20 keV, magnification: 1000×.
(a)
(b)