Sensitive Determination of Copper on New Modified Glassy Carbon Paste Electrode
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Škrivanj, Sandra B.Stanković, Dalibor
Khan, Muslim
Nikolić, Aleksandar S.
Vulić, Predrag J.
Manojlović, Dragan D.
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This paper describes determination of trace level of copper ions on a new type of modified glassy carbon paste electrode based on addition of different amount of Co-ferrites in glassy carbon paste (CoFeMGCPE). Co-ferrite nanoparticles with different amount of cobalt were synthesized and characterized using scanning electron microscopy (SEM) and X-ray powder diffraction (XRPD). A significant increase in current was achieved by introducing modifier in composition of the electrode in comparison with the bare glassy carbon paste electrode. Electrochemical parameters such as percentage of modifier, accumulation time and potential, pH and the optimized amount of cobalt in the ferrites were determined. The best voltammetric response was observed for Co0.5Fe0.5Fe2O4 when percentage of modifier was 3%. In acetate buffer solution, pH 4.5, thus prepared electrode displays selective detection toward copper ions, detection limit of 96 nM and it was successfully applied for the determination of copp...er ions in natural water samples, with satisfactory recovery.
Keywords:
Co-ferrite / Modified electrode / Glassy carbon paste / CopperSource:
Analytical and Bioanalytical Chemistry, 2015, 7, 2, 230-241Publisher:
- Univ Tehran, Fac Chemistry, Center Excellence Electrochemistry, Tehran
Funding / projects:
- Application of advanced oxidation processes and nanostructured oxide materials for the removal of pollutants from the environment, development and optimisation of instrumental techniques for efficiency monitoring (RS-172030)
- Rational design and synthesis of biologically active and coordination compounds and functional materials, relevant for (bio)nanotechnology (RS-172035)
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Hemijski fakultet / Faculty of ChemistryTY - JOUR AU - Škrivanj, Sandra B. AU - Stanković, Dalibor AU - Khan, Muslim AU - Nikolić, Aleksandar S. AU - Vulić, Predrag J. AU - Manojlović, Dragan D. PY - 2015 UR - https://cherry.chem.bg.ac.rs/handle/123456789/2151 AB - This paper describes determination of trace level of copper ions on a new type of modified glassy carbon paste electrode based on addition of different amount of Co-ferrites in glassy carbon paste (CoFeMGCPE). Co-ferrite nanoparticles with different amount of cobalt were synthesized and characterized using scanning electron microscopy (SEM) and X-ray powder diffraction (XRPD). A significant increase in current was achieved by introducing modifier in composition of the electrode in comparison with the bare glassy carbon paste electrode. Electrochemical parameters such as percentage of modifier, accumulation time and potential, pH and the optimized amount of cobalt in the ferrites were determined. The best voltammetric response was observed for Co0.5Fe0.5Fe2O4 when percentage of modifier was 3%. In acetate buffer solution, pH 4.5, thus prepared electrode displays selective detection toward copper ions, detection limit of 96 nM and it was successfully applied for the determination of copper ions in natural water samples, with satisfactory recovery. PB - Univ Tehran, Fac Chemistry, Center Excellence Electrochemistry, Tehran T2 - Analytical and Bioanalytical Chemistry T1 - Sensitive Determination of Copper on New Modified Glassy Carbon Paste Electrode VL - 7 IS - 2 SP - 230 EP - 241 UR - https://hdl.handle.net/21.15107/rcub_cherry_2151 ER -
@article{ author = "Škrivanj, Sandra B. and Stanković, Dalibor and Khan, Muslim and Nikolić, Aleksandar S. and Vulić, Predrag J. and Manojlović, Dragan D.", year = "2015", abstract = "This paper describes determination of trace level of copper ions on a new type of modified glassy carbon paste electrode based on addition of different amount of Co-ferrites in glassy carbon paste (CoFeMGCPE). Co-ferrite nanoparticles with different amount of cobalt were synthesized and characterized using scanning electron microscopy (SEM) and X-ray powder diffraction (XRPD). A significant increase in current was achieved by introducing modifier in composition of the electrode in comparison with the bare glassy carbon paste electrode. Electrochemical parameters such as percentage of modifier, accumulation time and potential, pH and the optimized amount of cobalt in the ferrites were determined. The best voltammetric response was observed for Co0.5Fe0.5Fe2O4 when percentage of modifier was 3%. In acetate buffer solution, pH 4.5, thus prepared electrode displays selective detection toward copper ions, detection limit of 96 nM and it was successfully applied for the determination of copper ions in natural water samples, with satisfactory recovery.", publisher = "Univ Tehran, Fac Chemistry, Center Excellence Electrochemistry, Tehran", journal = "Analytical and Bioanalytical Chemistry", title = "Sensitive Determination of Copper on New Modified Glassy Carbon Paste Electrode", volume = "7", number = "2", pages = "230-241", url = "https://hdl.handle.net/21.15107/rcub_cherry_2151" }
Škrivanj, S. B., Stanković, D., Khan, M., Nikolić, A. S., Vulić, P. J.,& Manojlović, D. D.. (2015). Sensitive Determination of Copper on New Modified Glassy Carbon Paste Electrode. in Analytical and Bioanalytical Chemistry Univ Tehran, Fac Chemistry, Center Excellence Electrochemistry, Tehran., 7(2), 230-241. https://hdl.handle.net/21.15107/rcub_cherry_2151
Škrivanj SB, Stanković D, Khan M, Nikolić AS, Vulić PJ, Manojlović DD. Sensitive Determination of Copper on New Modified Glassy Carbon Paste Electrode. in Analytical and Bioanalytical Chemistry. 2015;7(2):230-241. https://hdl.handle.net/21.15107/rcub_cherry_2151 .
Škrivanj, Sandra B., Stanković, Dalibor, Khan, Muslim, Nikolić, Aleksandar S., Vulić, Predrag J., Manojlović, Dragan D., "Sensitive Determination of Copper on New Modified Glassy Carbon Paste Electrode" in Analytical and Bioanalytical Chemistry, 7, no. 2 (2015):230-241, https://hdl.handle.net/21.15107/rcub_cherry_2151 .