Abstract
AbstractIn the present study, the glassy carbon electrode (GCE) modified with platinum nanoflowers (PtNFs/GCE) has been developed for copper determination. Differential pulse anodic stripping voltammetry (DPASV) was used to investigate the performance of the modified electrode. The effects of pH, deposition potential, deposition time, and step potential were investigated on the stripping peak current response of copper based on response surface methodology. The results indicated that pH of 5.07, deposition potential (‐0.605 V), deposition time (150.4 s), and step potential (6 mV) results in the maximum current density. Under the optimized conditions, a linear regression was obtained in the range of 0.75‐80 μg.L‐1 and detection limit also was found to be 0.312 μg.L‐1 by DPASV on the PtNFs/GCE surface. The fabricated electrode (PtNFs/GCE) showed good reproducibility and repeatability as well as high recovery. The practical application of the PtNFs/GCE was demonstrated by measuring the concentration of copper in real water samples.
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