Effect of cobalt doping level of ferrites in enhancing sensitivity of analytical performances of carbon paste electrode for simultaneous determination of catechol and hydroquinone
Authorized Users Only
2016
Authors
Lakić, MladenVukadinović, Aleksandar
Kalcher, Kurt
Nikolić, Aleksandar S.
Stanković, Dalibor M.
Article (Published version)
,
© 2016 Elsevier B.V.
Metadata
Show full item recordAbstract
This work presents the simultaneous determination of catechol (CC) and hydroquinone (HQ), employing a modified carbon paste electrode (CPE) with ferrite nanomaterial. Ferrite nanomaterial was doped with different amount of cobalt and this was investigated toward simultaneous oxidation of CC and HQ. It was shown that this modification strongly increases electrochemical characteristics of the CPE. Also, electrocatalytic activity of such materials strongly depends on the level of substituted Co in the ferrite nanoparticles. The modified electrodes, labeled as CoFerrite/CPE, showed two pairs of well-defined redox peaks for the electrochemical processes of catechol and hydroquinone. Involving of ferrite material in the structure of CPE, cause increase in the potentials differences between redox couples of the investigated compounds, accompanied with increases in peaks currents. Several important parameters were optimized and calibration curves, with limits of detection (LOD) of 0.15 and 0.3... mu M for catechol and hydroquinone, respectively, were constructed by employing amperometric detection. Effect of possible interfering compounds was also studied, and proposed method was successfully applied for CC and HQ quantification in real samples.
Keywords:
Cobalt-ferrite / Amperometry / Modified electrode / ElectrochemistrySource:
Talanta, 2016, 161, 668-674Funding / 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-MESTD-Basic Research (BR or ON)-172030)
- Rational design and synthesis of biologically active and coordination compounds and functional materials, relevant for (bio)nanotechnology (RS-MESTD-Basic Research (BR or ON)-172035)
DOI: 10.1016/j.talanta.2016.09.029
ISSN: 0039-9140; 1873-3573
PubMed: 27769463
WoS: 000386989500086
Scopus: 2-s2.0-84988012855
Collections
Institution/Community
VinčaTY - JOUR AU - Lakić, Mladen AU - Vukadinović, Aleksandar AU - Kalcher, Kurt AU - Nikolić, Aleksandar S. AU - Stanković, Dalibor M. PY - 2016 UR - https://vinar.vin.bg.ac.rs/handle/123456789/1292 AB - This work presents the simultaneous determination of catechol (CC) and hydroquinone (HQ), employing a modified carbon paste electrode (CPE) with ferrite nanomaterial. Ferrite nanomaterial was doped with different amount of cobalt and this was investigated toward simultaneous oxidation of CC and HQ. It was shown that this modification strongly increases electrochemical characteristics of the CPE. Also, electrocatalytic activity of such materials strongly depends on the level of substituted Co in the ferrite nanoparticles. The modified electrodes, labeled as CoFerrite/CPE, showed two pairs of well-defined redox peaks for the electrochemical processes of catechol and hydroquinone. Involving of ferrite material in the structure of CPE, cause increase in the potentials differences between redox couples of the investigated compounds, accompanied with increases in peaks currents. Several important parameters were optimized and calibration curves, with limits of detection (LOD) of 0.15 and 0.3 mu M for catechol and hydroquinone, respectively, were constructed by employing amperometric detection. Effect of possible interfering compounds was also studied, and proposed method was successfully applied for CC and HQ quantification in real samples. T2 - Talanta T1 - Effect of cobalt doping level of ferrites in enhancing sensitivity of analytical performances of carbon paste electrode for simultaneous determination of catechol and hydroquinone VL - 161 SP - 668 EP - 674 DO - 10.1016/j.talanta.2016.09.029 ER -
@article{ author = "Lakić, Mladen and Vukadinović, Aleksandar and Kalcher, Kurt and Nikolić, Aleksandar S. and Stanković, Dalibor M.", year = "2016", abstract = "This work presents the simultaneous determination of catechol (CC) and hydroquinone (HQ), employing a modified carbon paste electrode (CPE) with ferrite nanomaterial. Ferrite nanomaterial was doped with different amount of cobalt and this was investigated toward simultaneous oxidation of CC and HQ. It was shown that this modification strongly increases electrochemical characteristics of the CPE. Also, electrocatalytic activity of such materials strongly depends on the level of substituted Co in the ferrite nanoparticles. The modified electrodes, labeled as CoFerrite/CPE, showed two pairs of well-defined redox peaks for the electrochemical processes of catechol and hydroquinone. Involving of ferrite material in the structure of CPE, cause increase in the potentials differences between redox couples of the investigated compounds, accompanied with increases in peaks currents. Several important parameters were optimized and calibration curves, with limits of detection (LOD) of 0.15 and 0.3 mu M for catechol and hydroquinone, respectively, were constructed by employing amperometric detection. Effect of possible interfering compounds was also studied, and proposed method was successfully applied for CC and HQ quantification in real samples.", journal = "Talanta", title = "Effect of cobalt doping level of ferrites in enhancing sensitivity of analytical performances of carbon paste electrode for simultaneous determination of catechol and hydroquinone", volume = "161", pages = "668-674", doi = "10.1016/j.talanta.2016.09.029" }
Lakić, M., Vukadinović, A., Kalcher, K., Nikolić, A. S.,& Stanković, D. M.. (2016). Effect of cobalt doping level of ferrites in enhancing sensitivity of analytical performances of carbon paste electrode for simultaneous determination of catechol and hydroquinone. in Talanta, 161, 668-674. https://doi.org/10.1016/j.talanta.2016.09.029
Lakić M, Vukadinović A, Kalcher K, Nikolić AS, Stanković DM. Effect of cobalt doping level of ferrites in enhancing sensitivity of analytical performances of carbon paste electrode for simultaneous determination of catechol and hydroquinone. in Talanta. 2016;161:668-674. doi:10.1016/j.talanta.2016.09.029 .
Lakić, Mladen, Vukadinović, Aleksandar, Kalcher, Kurt, Nikolić, Aleksandar S., Stanković, Dalibor M., "Effect of cobalt doping level of ferrites in enhancing sensitivity of analytical performances of carbon paste electrode for simultaneous determination of catechol and hydroquinone" in Talanta, 161 (2016):668-674, https://doi.org/10.1016/j.talanta.2016.09.029 . .