کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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183867 | 459561 | 2015 | 10 صفحه PDF | دانلود رایگان |
ABSTRACTPlatinum nanosheets (Pt NSs) were fabricated on fullerene (C60) decorated glassy carbon electrode (GCE) (denoted as Pt NSs/C60/GCE) through a simple potentiostatic deposition method. In the coexistence of ascorbic acid (AA), dopamine (DA) and uric acid (UA), the as-prepared Pt NSs/C60/GCE electrode exhibited three well-resolved voltammetric peaks (ΔEAA–DA = 176 mV, ΔEDA–UA = 132 mV, ΔEAA–UA = 308 mV) in the differential pulse voltammetry (DPV) measurements, allowing a simultaneous detection of these biomolecules. There are linear relationships between current intensities and concentrations in the region of 10–1800 μM (AA), 0.5–211.5 μM (DA), and 9.5–1187 μM (UA), and the limits of detection (LOD) (S/N = 3) are down to 0.43 μM, 0.07 μM and 0.63 μM for AA, DA and UA, respectively. The as-prepared Pt NSs/C60/GCE electrode displayed a good reproducibility and storage stability and was successfully used for detection of AA, DA and UA in real plasma and urine samples.
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Journal: Electrochimica Acta - Volume 177, 20 September 2015, Pages 118–127