Publication: Poly(m-ferrocenylaniline) modified carbon nanotubes-paste electrode encapsulated in nafion film for selective and sensitive determination of dopamine and uric acid in the presence of ascorbic acid
Issued Date
2018-02-01
Resource Type
ISSN
13196103
Other identifier(s)
2-s2.0-84960981939
Rights
Mahidol University
Rights Holder(s)
SCOPUS
Bibliographic Citation
Journal of Saudi Chemical Society. Vol.22, No.2 (2018), 173-182
Suggested Citation
Wongduan Sroysee, Sanoe Chairam, Maliwan Amatatongchai, Purim Jarujamrus, Suparb Tamuang, Saichol Pimmongkol, Laksamee Chaicharoenwimolkul, Ekasith Somsook Poly(m-ferrocenylaniline) modified carbon nanotubes-paste electrode encapsulated in nafion film for selective and sensitive determination of dopamine and uric acid in the presence of ascorbic acid. Journal of Saudi Chemical Society. Vol.22, No.2 (2018), 173-182. doi:10.1016/j.jscs.2016.02.003 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/45509
Research Projects
Organizational Units
Authors
Journal Issue
Thesis
Title
Poly(m-ferrocenylaniline) modified carbon nanotubes-paste electrode encapsulated in nafion film for selective and sensitive determination of dopamine and uric acid in the presence of ascorbic acid
Other Contributor(s)
Abstract
© 2016 King Saud University A nafion covered carbon nanotubes-paste electrode modified with poly(m-ferrocenylaniline), (Nf/p(FcAni)-CNTsPE), provides a novel voltammetric sensor for the selective determination of dopamine (DA) and uric acid (UA) in the presence of ascorbic acid (AA). We studied the electrochemical activity of Nf/p(FcAni)-CNTsPE toward DA, UA, and AA by differential pulse voltammetry (DPV). DA and UA anodic peaks appear at 0.30 and 0.45 V, respectively while an anodic peak for AA was not observed. DPV oxidation peak values are linearly dependent on DA concentration over the range 1–150 μM (r2 = 0.992), and on UA concentration over the range 5–250 μM (r2 = 0.997). DA and UA detection limits are estimated to be 0.21 and 0.58 μM, respectively. The modified electrode shows both good selectivity and reproducibility for the selective determination of DA and UA in real samples. Finally, the modified electrode was successfully applied for the determination of DA and UA in pharmaceutical or biological sample fluids.