Sensitive Determination of Dopamine and Paracetamol Based on Carbon Nanotubes-Supported Pd Nanoparticles
A novel chemically modified electrode was constructed in this study based on the carbon nanotubes-supported Pd nanoparticles (Pd/CNTs). It was demonstrated that the sensor could be used for the determination of dopamine (DA) and paracetamol (PA). The measurements were carried out through
application of cyclic voltammetry (CV), differential pulse voltammetry (DPV) and amperometric i–t curve. Under optimum conditions and using the amperometric i–t curve method, the modified electrode provided linear response versus dopamine concentrations
in the range of 0.3 × 10−6–5.0 × 10−5 M and PA concentrations in the range of 0.2 × 10−6–6.0 × 10−5 M, respectively. The detection limits for the DA and PA were 9.1 × 10−8
M and 8.9 × 10−8 M (S/N = 3), respectively. The sensitivities for of the electrode were 0.928 and 1.532 μA μM−1 cm−1, respectively.
Keywords: Carbon Nanotubes; Dopamine; Palladium; Paracetamol; Sensor
Document Type: Research Article
Affiliations: 1: Henan Key Laboratory of Polyoxometalate Chemistry, Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, P. R. China 2: Institute of Environmental and Analytical Sciences, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan, 475004, People’s Republic of China
Publication date: 01 January 2018
- Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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