The use of graphene nanoribbons as efficient electrochemical sensing material for nitrite determination
Samo za registrovane korisnike
2016
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
In this work new designed, highly sensitive electrochemical method is developed for the determination of nitrites in tap water using glassy carbon electrode modified with graphene nanoribbons (GNs/GCE). Graphene nanoribbons (GNs) have been newly synthetized and aligned to the surface of glassy carbon electrode (GCE) and exhibited excellent electrocatalytic activity for nitrite oxidation with a very high peak currents. Studies about electrochemical behavior and optimization of the most important experimental conditions were done using cyclic voltammetry (CV), while quantitative studies were done with amperometric detection. Nitrite provides a well-defined, oxidation peak at +0.9 V (vs. Ag/AgCI, 3.0 M KCI) in Britton-Robinson buffer solution (BRBS) at pH 3. The influence of most possible interferent ions has been examined and was found to be negligible. Under optimized experimental conditions in BRBS at pH 3 linear calibration curves were obtained in the range from 0.5 to 105 mu M with t...he detection limit of 0.22 mu M. Reproducibility of ten replicate measurements of 1 M of nitrite was estimated to be 1.9%. Proposed method and constructed sensor is successfully applied for the determination of nitrite present in tap water samples without any pretreatment. This developed method represents inexpensive analytical alternative approach compared to other analytical methods. (C) 2016 Elsevier B.V. All rights reserved.
Ključne reči:
Graphene nanoribbons / Nitrite / Amperometry / Glassy carbon electrodeIzvor:
Talanta, 2016, 159, 34-39Izdavač:
- Elsevier Science Bv, Amsterdam
Finansiranje / 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)
- Austrian Agency for International Cooperation in Education and Research (OeAD-GmbH)
- ADA
Napomena:
- Peer-reviewed manuscript: http://cherry.chem.bg.ac.rs/handle/123456789/3653
DOI: 10.1016/j.talanta.2016.05.079
ISSN: 0039-9140
PubMed: 27474276
WoS: 000381322000006
Scopus: 2-s2.0-84973534399
Kolekcije
Institucija/grupa
Inovacioni centar / Innovation CentreTY - JOUR AU - Mehmeti, Eda AU - Stanković, Dalibor AU - Hajrizi, Ahmet AU - Kalcher, Kurt PY - 2016 UR - https://cherry.chem.bg.ac.rs/handle/123456789/2292 AB - In this work new designed, highly sensitive electrochemical method is developed for the determination of nitrites in tap water using glassy carbon electrode modified with graphene nanoribbons (GNs/GCE). Graphene nanoribbons (GNs) have been newly synthetized and aligned to the surface of glassy carbon electrode (GCE) and exhibited excellent electrocatalytic activity for nitrite oxidation with a very high peak currents. Studies about electrochemical behavior and optimization of the most important experimental conditions were done using cyclic voltammetry (CV), while quantitative studies were done with amperometric detection. Nitrite provides a well-defined, oxidation peak at +0.9 V (vs. Ag/AgCI, 3.0 M KCI) in Britton-Robinson buffer solution (BRBS) at pH 3. The influence of most possible interferent ions has been examined and was found to be negligible. Under optimized experimental conditions in BRBS at pH 3 linear calibration curves were obtained in the range from 0.5 to 105 mu M with the detection limit of 0.22 mu M. Reproducibility of ten replicate measurements of 1 M of nitrite was estimated to be 1.9%. Proposed method and constructed sensor is successfully applied for the determination of nitrite present in tap water samples without any pretreatment. This developed method represents inexpensive analytical alternative approach compared to other analytical methods. (C) 2016 Elsevier B.V. All rights reserved. PB - Elsevier Science Bv, Amsterdam T2 - Talanta T1 - The use of graphene nanoribbons as efficient electrochemical sensing material for nitrite determination VL - 159 SP - 34 EP - 39 DO - 10.1016/j.talanta.2016.05.079 ER -
@article{ author = "Mehmeti, Eda and Stanković, Dalibor and Hajrizi, Ahmet and Kalcher, Kurt", year = "2016", abstract = "In this work new designed, highly sensitive electrochemical method is developed for the determination of nitrites in tap water using glassy carbon electrode modified with graphene nanoribbons (GNs/GCE). Graphene nanoribbons (GNs) have been newly synthetized and aligned to the surface of glassy carbon electrode (GCE) and exhibited excellent electrocatalytic activity for nitrite oxidation with a very high peak currents. Studies about electrochemical behavior and optimization of the most important experimental conditions were done using cyclic voltammetry (CV), while quantitative studies were done with amperometric detection. Nitrite provides a well-defined, oxidation peak at +0.9 V (vs. Ag/AgCI, 3.0 M KCI) in Britton-Robinson buffer solution (BRBS) at pH 3. The influence of most possible interferent ions has been examined and was found to be negligible. Under optimized experimental conditions in BRBS at pH 3 linear calibration curves were obtained in the range from 0.5 to 105 mu M with the detection limit of 0.22 mu M. Reproducibility of ten replicate measurements of 1 M of nitrite was estimated to be 1.9%. Proposed method and constructed sensor is successfully applied for the determination of nitrite present in tap water samples without any pretreatment. This developed method represents inexpensive analytical alternative approach compared to other analytical methods. (C) 2016 Elsevier B.V. All rights reserved.", publisher = "Elsevier Science Bv, Amsterdam", journal = "Talanta", title = "The use of graphene nanoribbons as efficient electrochemical sensing material for nitrite determination", volume = "159", pages = "34-39", doi = "10.1016/j.talanta.2016.05.079" }
Mehmeti, E., Stanković, D., Hajrizi, A.,& Kalcher, K.. (2016). The use of graphene nanoribbons as efficient electrochemical sensing material for nitrite determination. in Talanta Elsevier Science Bv, Amsterdam., 159, 34-39. https://doi.org/10.1016/j.talanta.2016.05.079
Mehmeti E, Stanković D, Hajrizi A, Kalcher K. The use of graphene nanoribbons as efficient electrochemical sensing material for nitrite determination. in Talanta. 2016;159:34-39. doi:10.1016/j.talanta.2016.05.079 .
Mehmeti, Eda, Stanković, Dalibor, Hajrizi, Ahmet, Kalcher, Kurt, "The use of graphene nanoribbons as efficient electrochemical sensing material for nitrite determination" in Talanta, 159 (2016):34-39, https://doi.org/10.1016/j.talanta.2016.05.079 . .