Please use this identifier to cite or link to this item:
https://hdl.handle.net/11499/9458
Title: | Fabrication of novel electrochemical sensor for determination of vitamin C in the presence of Vitamin B9 in food and pharmaceutical samples | Authors: | Khaleghi, F. Arab, Z. Gupta, V.K. Ganjali, M.R. Norouzi, P. Atar, Necip Yola, M.L. |
Keywords: | Ionic liquids NiO/MWCNTs Vitamin B9 Vitamin C Carbon nanotubes Chemical detection Electrochemical sensors Electrodes Multiwalled carbon nanotubes (MWCN) Oxidation Yarn 1-Butyl-3-methylimidazolium tetrafluoroborate Carbon nanotube nanocomposites Carbon paste electrode Linear response range Vitamin B Voltammetric determination Biosynthesis |
Publisher: | Elsevier B.V. | Abstract: | Synthesis and application of NiO-multiwall carbon nanotube nanocomposite (NiO/MWCNTs) and 1-butyl-3-methylimidazolium tetrafluoroborate ([Bmim]BF4) in the carbon paste matrix as high sensitive sensors for voltammetric determination of vitamin C have been reported. The oxidation peak potential of vitamin C at the surface of the ([Bmim]BF4) NiO/MWCNT carbon paste electrode (NiO/MWCNTs/([Bmim]BF4/CPE) appeared at 440 mV, which was about 200 mV lower than the oxidation peak potential at the surface of the simple carbon paste electrode under a similar condition. Also, the oxidation peak current was increased for about 3.7 times at the surface of NiO/MWCNTs/([Bmim]BF4/CPE compared to carbon paste electrode. At an optimum condition (pH 7.0), the two peaks are separated ca. 0.44 and 0.85 V for vitamin C and vitamin B9. This point shows that vitamin C can be determined in the presence of vitamin B9. The linear response range and detection limit were found to be 0.1-1000 µM and 0.06 µM, respectively. The proposed sensor was successfully applied for the determination of vitamin C in food and drug samples. © 2016 Elsevier B.V. All rights reserved. | URI: | https://hdl.handle.net/11499/9458 https://doi.org/10.1016/j.molliq.2016.06.061 |
ISSN: | 0167-7322 |
Appears in Collections: | Mühendislik Fakültesi Koleksiyonu Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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