Effect of cobalt doping level of ferrites in enhancing sensitivity of analytical performances of carbon paste electrode for simultaneous determination of catechol and hydroquinone
Samo za registrovane korisnike
2016
Autori
Lakić, Mladen![](/themes/MirageVinar/images/orcid.png)
Vukadinović, Aleksandar
![](/themes/MirageVinar/images/orcid.png)
Kalcher, Kurt
Nikolić, Aleksandar S.
![](/themes/MirageVinar/images/orcid.png)
Stanković, Dalibor M.
![](/themes/MirageVinar/images/orcid.png)
Članak u časopisu (Objavljena verzija)
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© 2016 Elsevier B.V.
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
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.
Ključne reči:
Cobalt-ferrite / Amperometry / Modified electrode / ElectrochemistryIzvor:
Talanta, 2016, 161, 668-674Finansiranje / projekti:
- Primena unapređenih oksidacionih procesa i nanostrukturisanih oksidnih materijala za uklanjanje zagađivača iz životne sredine, razvoj i optimizacija instrumentalnih tehnika za praćenje efikasnosti (RS-MESTD-Basic Research (BR or ON)-172030)
- Racionalni dizajn i sinteza biološki aktivnih i koordinacionih jedinjenja i funkcionalnih materijala, relevantnih u (bio)nanotehnologiji (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
Kolekcije
Institucija/grupa
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 . .