Size effects of multi-walled carbon nanotubes on the electrochemical oxidation of propionic acid derivative drugs: Ibuprofen and naproxen
The superior electrochemical activity of multi-walled carbon nanotubes (MWCNTs) of shorter dimensions towards the oxidation of propionic acid derivative drugs, namely ibuprofen (IBF) and naproxen (NPX), is presented. A glassy-carbon electrode was modified with MWCNTs of different sizes (diameter×len...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Montes, Rodrigo H.O. [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2016transfer abstract |
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| Umfang: |
8 |
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| Übergeordnetes Werk: |
Enthalten in: Enhancement with physicochemical and biological treatments in the removal of pharmaceutically active compounds during sewage sludge anaerobic digestion processes - Zhou, Haidong ELSEVIER, 2017, an international journal devoted to all aspects of electrode kinetics, interfacial structure, properties of electrolytes, colloid and biological electrochemistry, New York, NY [u.a.] |
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| Übergeordnetes Werk: |
volume:775 ; year:2016 ; day:15 ; month:08 ; pages:342-349 ; extent:8 |
| Links: |
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| DOI / URN: |
10.1016/j.jelechem.2016.06.026 |
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ELV029621658 |
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| 245 | 1 | 0 | |a Size effects of multi-walled carbon nanotubes on the electrochemical oxidation of propionic acid derivative drugs: Ibuprofen and naproxen |
| 264 | 1 | |c 2016transfer abstract | |
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| 520 | |a The superior electrochemical activity of multi-walled carbon nanotubes (MWCNTs) of shorter dimensions towards the oxidation of propionic acid derivative drugs, namely ibuprofen (IBF) and naproxen (NPX), is presented. A glassy-carbon electrode was modified with MWCNTs of different sizes (diameter×length: 100–170nm×5–9μm and 6–9nm×5μm, corresponding to LD- and SD-MWCNTs, respectively, larger and shorter diameter). Cyclic voltammetry of the SD-MWCNT-modified electrode showed a 200–300mV decrease in the overpotential of oxidation reactions of both drugs and an increase in current (2 to 3.5-fold) in comparison with the LD-MWCNT-modified and unmodified electrodes. Similarly, the amperometric determination of both drugs using the SD-MWCNT-modified electrode presented an increase in sensitivity in comparison with LD-MWCNT-modified electrode (2 to 2.8-fold). Improved performance of the SD-MWCNT-modified electrode was in agreement with electrochemical impedance spectroscopy measurements. These results indicate the higher electrocatalytic activity of SD-MWCNTs, which can be explained by the increased defect density revealed by Raman spectroscopic measurements. Additionally, we report the first amperometric method for IBF determination using the SD-MWCNT-modified electrode, with a linear range from 10 to 1000μmolL−1, detection limit of 1.9μmolL−1, precision of 4%, and accuracy attested by capillary electrophoresis analyses. | ||
| 520 | |a The superior electrochemical activity of multi-walled carbon nanotubes (MWCNTs) of shorter dimensions towards the oxidation of propionic acid derivative drugs, namely ibuprofen (IBF) and naproxen (NPX), is presented. A glassy-carbon electrode was modified with MWCNTs of different sizes (diameter×length: 100–170nm×5–9μm and 6–9nm×5μm, corresponding to LD- and SD-MWCNTs, respectively, larger and shorter diameter). Cyclic voltammetry of the SD-MWCNT-modified electrode showed a 200–300mV decrease in the overpotential of oxidation reactions of both drugs and an increase in current (2 to 3.5-fold) in comparison with the LD-MWCNT-modified and unmodified electrodes. Similarly, the amperometric determination of both drugs using the SD-MWCNT-modified electrode presented an increase in sensitivity in comparison with LD-MWCNT-modified electrode (2 to 2.8-fold). Improved performance of the SD-MWCNT-modified electrode was in agreement with electrochemical impedance spectroscopy measurements. These results indicate the higher electrocatalytic activity of SD-MWCNTs, which can be explained by the increased defect density revealed by Raman spectroscopic measurements. Additionally, we report the first amperometric method for IBF determination using the SD-MWCNT-modified electrode, with a linear range from 10 to 1000μmolL−1, detection limit of 1.9μmolL−1, precision of 4%, and accuracy attested by capillary electrophoresis analyses. | ||
| 700 | 1 | |a Lima, Ana P. |4 oth | |
| 700 | 1 | |a Cunha, Rafael R. |4 oth | |
| 700 | 1 | |a Guedes, Tiago J. |4 oth | |
| 700 | 1 | |a dos Santos, Wallans T.P. |4 oth | |
| 700 | 1 | |a Nossol, Edson |4 oth | |
| 700 | 1 | |a Richter, Eduardo M. |4 oth | |
| 700 | 1 | |a Munoz, Rodrigo A.A. |4 oth | |
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10.1016/j.jelechem.2016.06.026 doi GBVA2016007000007.pica (DE-627)ELV029621658 (ELSEVIER)S1572-6657(16)30314-9 DE-627 ger DE-627 rakwb eng 540 620 540 DE-600 620 DE-600 660 VZ 660 VZ 530 600 670 VZ 51.00 bkl Montes, Rodrigo H.O. verfasserin aut Size effects of multi-walled carbon nanotubes on the electrochemical oxidation of propionic acid derivative drugs: Ibuprofen and naproxen 2016transfer abstract 8 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The superior electrochemical activity of multi-walled carbon nanotubes (MWCNTs) of shorter dimensions towards the oxidation of propionic acid derivative drugs, namely ibuprofen (IBF) and naproxen (NPX), is presented. A glassy-carbon electrode was modified with MWCNTs of different sizes (diameter×length: 100–170nm×5–9μm and 6–9nm×5μm, corresponding to LD- and SD-MWCNTs, respectively, larger and shorter diameter). Cyclic voltammetry of the SD-MWCNT-modified electrode showed a 200–300mV decrease in the overpotential of oxidation reactions of both drugs and an increase in current (2 to 3.5-fold) in comparison with the LD-MWCNT-modified and unmodified electrodes. Similarly, the amperometric determination of both drugs using the SD-MWCNT-modified electrode presented an increase in sensitivity in comparison with LD-MWCNT-modified electrode (2 to 2.8-fold). Improved performance of the SD-MWCNT-modified electrode was in agreement with electrochemical impedance spectroscopy measurements. These results indicate the higher electrocatalytic activity of SD-MWCNTs, which can be explained by the increased defect density revealed by Raman spectroscopic measurements. Additionally, we report the first amperometric method for IBF determination using the SD-MWCNT-modified electrode, with a linear range from 10 to 1000μmolL−1, detection limit of 1.9μmolL−1, precision of 4%, and accuracy attested by capillary electrophoresis analyses. The superior electrochemical activity of multi-walled carbon nanotubes (MWCNTs) of shorter dimensions towards the oxidation of propionic acid derivative drugs, namely ibuprofen (IBF) and naproxen (NPX), is presented. A glassy-carbon electrode was modified with MWCNTs of different sizes (diameter×length: 100–170nm×5–9μm and 6–9nm×5μm, corresponding to LD- and SD-MWCNTs, respectively, larger and shorter diameter). Cyclic voltammetry of the SD-MWCNT-modified electrode showed a 200–300mV decrease in the overpotential of oxidation reactions of both drugs and an increase in current (2 to 3.5-fold) in comparison with the LD-MWCNT-modified and unmodified electrodes. Similarly, the amperometric determination of both drugs using the SD-MWCNT-modified electrode presented an increase in sensitivity in comparison with LD-MWCNT-modified electrode (2 to 2.8-fold). Improved performance of the SD-MWCNT-modified electrode was in agreement with electrochemical impedance spectroscopy measurements. These results indicate the higher electrocatalytic activity of SD-MWCNTs, which can be explained by the increased defect density revealed by Raman spectroscopic measurements. Additionally, we report the first amperometric method for IBF determination using the SD-MWCNT-modified electrode, with a linear range from 10 to 1000μmolL−1, detection limit of 1.9μmolL−1, precision of 4%, and accuracy attested by capillary electrophoresis analyses. Lima, Ana P. oth Cunha, Rafael R. oth Guedes, Tiago J. oth dos Santos, Wallans T.P. oth Nossol, Edson oth Richter, Eduardo M. oth Munoz, Rodrigo A.A. oth Enthalten in Elsevier Zhou, Haidong ELSEVIER Enhancement with physicochemical and biological treatments in the removal of pharmaceutically active compounds during sewage sludge anaerobic digestion processes 2017 an international journal devoted to all aspects of electrode kinetics, interfacial structure, properties of electrolytes, colloid and biological electrochemistry New York, NY [u.a.] (DE-627)ELV014792559 volume:775 year:2016 day:15 month:08 pages:342-349 extent:8 https://doi.org/10.1016/j.jelechem.2016.06.026 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_22 GBV_ILN_40 GBV_ILN_105 51.00 Werkstoffkunde: Allgemeines VZ AR 775 2016 15 0815 342-349 8 045F 540 |
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10.1016/j.jelechem.2016.06.026 doi GBVA2016007000007.pica (DE-627)ELV029621658 (ELSEVIER)S1572-6657(16)30314-9 DE-627 ger DE-627 rakwb eng 540 620 540 DE-600 620 DE-600 660 VZ 660 VZ 530 600 670 VZ 51.00 bkl Montes, Rodrigo H.O. verfasserin aut Size effects of multi-walled carbon nanotubes on the electrochemical oxidation of propionic acid derivative drugs: Ibuprofen and naproxen 2016transfer abstract 8 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The superior electrochemical activity of multi-walled carbon nanotubes (MWCNTs) of shorter dimensions towards the oxidation of propionic acid derivative drugs, namely ibuprofen (IBF) and naproxen (NPX), is presented. A glassy-carbon electrode was modified with MWCNTs of different sizes (diameter×length: 100–170nm×5–9μm and 6–9nm×5μm, corresponding to LD- and SD-MWCNTs, respectively, larger and shorter diameter). Cyclic voltammetry of the SD-MWCNT-modified electrode showed a 200–300mV decrease in the overpotential of oxidation reactions of both drugs and an increase in current (2 to 3.5-fold) in comparison with the LD-MWCNT-modified and unmodified electrodes. Similarly, the amperometric determination of both drugs using the SD-MWCNT-modified electrode presented an increase in sensitivity in comparison with LD-MWCNT-modified electrode (2 to 2.8-fold). Improved performance of the SD-MWCNT-modified electrode was in agreement with electrochemical impedance spectroscopy measurements. These results indicate the higher electrocatalytic activity of SD-MWCNTs, which can be explained by the increased defect density revealed by Raman spectroscopic measurements. Additionally, we report the first amperometric method for IBF determination using the SD-MWCNT-modified electrode, with a linear range from 10 to 1000μmolL−1, detection limit of 1.9μmolL−1, precision of 4%, and accuracy attested by capillary electrophoresis analyses. The superior electrochemical activity of multi-walled carbon nanotubes (MWCNTs) of shorter dimensions towards the oxidation of propionic acid derivative drugs, namely ibuprofen (IBF) and naproxen (NPX), is presented. A glassy-carbon electrode was modified with MWCNTs of different sizes (diameter×length: 100–170nm×5–9μm and 6–9nm×5μm, corresponding to LD- and SD-MWCNTs, respectively, larger and shorter diameter). Cyclic voltammetry of the SD-MWCNT-modified electrode showed a 200–300mV decrease in the overpotential of oxidation reactions of both drugs and an increase in current (2 to 3.5-fold) in comparison with the LD-MWCNT-modified and unmodified electrodes. Similarly, the amperometric determination of both drugs using the SD-MWCNT-modified electrode presented an increase in sensitivity in comparison with LD-MWCNT-modified electrode (2 to 2.8-fold). Improved performance of the SD-MWCNT-modified electrode was in agreement with electrochemical impedance spectroscopy measurements. These results indicate the higher electrocatalytic activity of SD-MWCNTs, which can be explained by the increased defect density revealed by Raman spectroscopic measurements. Additionally, we report the first amperometric method for IBF determination using the SD-MWCNT-modified electrode, with a linear range from 10 to 1000μmolL−1, detection limit of 1.9μmolL−1, precision of 4%, and accuracy attested by capillary electrophoresis analyses. Lima, Ana P. oth Cunha, Rafael R. oth Guedes, Tiago J. oth dos Santos, Wallans T.P. oth Nossol, Edson oth Richter, Eduardo M. oth Munoz, Rodrigo A.A. oth Enthalten in Elsevier Zhou, Haidong ELSEVIER Enhancement with physicochemical and biological treatments in the removal of pharmaceutically active compounds during sewage sludge anaerobic digestion processes 2017 an international journal devoted to all aspects of electrode kinetics, interfacial structure, properties of electrolytes, colloid and biological electrochemistry New York, NY [u.a.] (DE-627)ELV014792559 volume:775 year:2016 day:15 month:08 pages:342-349 extent:8 https://doi.org/10.1016/j.jelechem.2016.06.026 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_22 GBV_ILN_40 GBV_ILN_105 51.00 Werkstoffkunde: Allgemeines VZ AR 775 2016 15 0815 342-349 8 045F 540 |
| allfields_unstemmed |
10.1016/j.jelechem.2016.06.026 doi GBVA2016007000007.pica (DE-627)ELV029621658 (ELSEVIER)S1572-6657(16)30314-9 DE-627 ger DE-627 rakwb eng 540 620 540 DE-600 620 DE-600 660 VZ 660 VZ 530 600 670 VZ 51.00 bkl Montes, Rodrigo H.O. verfasserin aut Size effects of multi-walled carbon nanotubes on the electrochemical oxidation of propionic acid derivative drugs: Ibuprofen and naproxen 2016transfer abstract 8 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The superior electrochemical activity of multi-walled carbon nanotubes (MWCNTs) of shorter dimensions towards the oxidation of propionic acid derivative drugs, namely ibuprofen (IBF) and naproxen (NPX), is presented. A glassy-carbon electrode was modified with MWCNTs of different sizes (diameter×length: 100–170nm×5–9μm and 6–9nm×5μm, corresponding to LD- and SD-MWCNTs, respectively, larger and shorter diameter). Cyclic voltammetry of the SD-MWCNT-modified electrode showed a 200–300mV decrease in the overpotential of oxidation reactions of both drugs and an increase in current (2 to 3.5-fold) in comparison with the LD-MWCNT-modified and unmodified electrodes. Similarly, the amperometric determination of both drugs using the SD-MWCNT-modified electrode presented an increase in sensitivity in comparison with LD-MWCNT-modified electrode (2 to 2.8-fold). Improved performance of the SD-MWCNT-modified electrode was in agreement with electrochemical impedance spectroscopy measurements. These results indicate the higher electrocatalytic activity of SD-MWCNTs, which can be explained by the increased defect density revealed by Raman spectroscopic measurements. Additionally, we report the first amperometric method for IBF determination using the SD-MWCNT-modified electrode, with a linear range from 10 to 1000μmolL−1, detection limit of 1.9μmolL−1, precision of 4%, and accuracy attested by capillary electrophoresis analyses. The superior electrochemical activity of multi-walled carbon nanotubes (MWCNTs) of shorter dimensions towards the oxidation of propionic acid derivative drugs, namely ibuprofen (IBF) and naproxen (NPX), is presented. A glassy-carbon electrode was modified with MWCNTs of different sizes (diameter×length: 100–170nm×5–9μm and 6–9nm×5μm, corresponding to LD- and SD-MWCNTs, respectively, larger and shorter diameter). Cyclic voltammetry of the SD-MWCNT-modified electrode showed a 200–300mV decrease in the overpotential of oxidation reactions of both drugs and an increase in current (2 to 3.5-fold) in comparison with the LD-MWCNT-modified and unmodified electrodes. Similarly, the amperometric determination of both drugs using the SD-MWCNT-modified electrode presented an increase in sensitivity in comparison with LD-MWCNT-modified electrode (2 to 2.8-fold). Improved performance of the SD-MWCNT-modified electrode was in agreement with electrochemical impedance spectroscopy measurements. These results indicate the higher electrocatalytic activity of SD-MWCNTs, which can be explained by the increased defect density revealed by Raman spectroscopic measurements. Additionally, we report the first amperometric method for IBF determination using the SD-MWCNT-modified electrode, with a linear range from 10 to 1000μmolL−1, detection limit of 1.9μmolL−1, precision of 4%, and accuracy attested by capillary electrophoresis analyses. Lima, Ana P. oth Cunha, Rafael R. oth Guedes, Tiago J. oth dos Santos, Wallans T.P. oth Nossol, Edson oth Richter, Eduardo M. oth Munoz, Rodrigo A.A. oth Enthalten in Elsevier Zhou, Haidong ELSEVIER Enhancement with physicochemical and biological treatments in the removal of pharmaceutically active compounds during sewage sludge anaerobic digestion processes 2017 an international journal devoted to all aspects of electrode kinetics, interfacial structure, properties of electrolytes, colloid and biological electrochemistry New York, NY [u.a.] (DE-627)ELV014792559 volume:775 year:2016 day:15 month:08 pages:342-349 extent:8 https://doi.org/10.1016/j.jelechem.2016.06.026 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_22 GBV_ILN_40 GBV_ILN_105 51.00 Werkstoffkunde: Allgemeines VZ AR 775 2016 15 0815 342-349 8 045F 540 |
| allfieldsGer |
10.1016/j.jelechem.2016.06.026 doi GBVA2016007000007.pica (DE-627)ELV029621658 (ELSEVIER)S1572-6657(16)30314-9 DE-627 ger DE-627 rakwb eng 540 620 540 DE-600 620 DE-600 660 VZ 660 VZ 530 600 670 VZ 51.00 bkl Montes, Rodrigo H.O. verfasserin aut Size effects of multi-walled carbon nanotubes on the electrochemical oxidation of propionic acid derivative drugs: Ibuprofen and naproxen 2016transfer abstract 8 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The superior electrochemical activity of multi-walled carbon nanotubes (MWCNTs) of shorter dimensions towards the oxidation of propionic acid derivative drugs, namely ibuprofen (IBF) and naproxen (NPX), is presented. A glassy-carbon electrode was modified with MWCNTs of different sizes (diameter×length: 100–170nm×5–9μm and 6–9nm×5μm, corresponding to LD- and SD-MWCNTs, respectively, larger and shorter diameter). Cyclic voltammetry of the SD-MWCNT-modified electrode showed a 200–300mV decrease in the overpotential of oxidation reactions of both drugs and an increase in current (2 to 3.5-fold) in comparison with the LD-MWCNT-modified and unmodified electrodes. Similarly, the amperometric determination of both drugs using the SD-MWCNT-modified electrode presented an increase in sensitivity in comparison with LD-MWCNT-modified electrode (2 to 2.8-fold). Improved performance of the SD-MWCNT-modified electrode was in agreement with electrochemical impedance spectroscopy measurements. These results indicate the higher electrocatalytic activity of SD-MWCNTs, which can be explained by the increased defect density revealed by Raman spectroscopic measurements. Additionally, we report the first amperometric method for IBF determination using the SD-MWCNT-modified electrode, with a linear range from 10 to 1000μmolL−1, detection limit of 1.9μmolL−1, precision of 4%, and accuracy attested by capillary electrophoresis analyses. The superior electrochemical activity of multi-walled carbon nanotubes (MWCNTs) of shorter dimensions towards the oxidation of propionic acid derivative drugs, namely ibuprofen (IBF) and naproxen (NPX), is presented. A glassy-carbon electrode was modified with MWCNTs of different sizes (diameter×length: 100–170nm×5–9μm and 6–9nm×5μm, corresponding to LD- and SD-MWCNTs, respectively, larger and shorter diameter). Cyclic voltammetry of the SD-MWCNT-modified electrode showed a 200–300mV decrease in the overpotential of oxidation reactions of both drugs and an increase in current (2 to 3.5-fold) in comparison with the LD-MWCNT-modified and unmodified electrodes. Similarly, the amperometric determination of both drugs using the SD-MWCNT-modified electrode presented an increase in sensitivity in comparison with LD-MWCNT-modified electrode (2 to 2.8-fold). Improved performance of the SD-MWCNT-modified electrode was in agreement with electrochemical impedance spectroscopy measurements. These results indicate the higher electrocatalytic activity of SD-MWCNTs, which can be explained by the increased defect density revealed by Raman spectroscopic measurements. Additionally, we report the first amperometric method for IBF determination using the SD-MWCNT-modified electrode, with a linear range from 10 to 1000μmolL−1, detection limit of 1.9μmolL−1, precision of 4%, and accuracy attested by capillary electrophoresis analyses. Lima, Ana P. oth Cunha, Rafael R. oth Guedes, Tiago J. oth dos Santos, Wallans T.P. oth Nossol, Edson oth Richter, Eduardo M. oth Munoz, Rodrigo A.A. oth Enthalten in Elsevier Zhou, Haidong ELSEVIER Enhancement with physicochemical and biological treatments in the removal of pharmaceutically active compounds during sewage sludge anaerobic digestion processes 2017 an international journal devoted to all aspects of electrode kinetics, interfacial structure, properties of electrolytes, colloid and biological electrochemistry New York, NY [u.a.] (DE-627)ELV014792559 volume:775 year:2016 day:15 month:08 pages:342-349 extent:8 https://doi.org/10.1016/j.jelechem.2016.06.026 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_22 GBV_ILN_40 GBV_ILN_105 51.00 Werkstoffkunde: Allgemeines VZ AR 775 2016 15 0815 342-349 8 045F 540 |
| allfieldsSound |
10.1016/j.jelechem.2016.06.026 doi GBVA2016007000007.pica (DE-627)ELV029621658 (ELSEVIER)S1572-6657(16)30314-9 DE-627 ger DE-627 rakwb eng 540 620 540 DE-600 620 DE-600 660 VZ 660 VZ 530 600 670 VZ 51.00 bkl Montes, Rodrigo H.O. verfasserin aut Size effects of multi-walled carbon nanotubes on the electrochemical oxidation of propionic acid derivative drugs: Ibuprofen and naproxen 2016transfer abstract 8 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The superior electrochemical activity of multi-walled carbon nanotubes (MWCNTs) of shorter dimensions towards the oxidation of propionic acid derivative drugs, namely ibuprofen (IBF) and naproxen (NPX), is presented. A glassy-carbon electrode was modified with MWCNTs of different sizes (diameter×length: 100–170nm×5–9μm and 6–9nm×5μm, corresponding to LD- and SD-MWCNTs, respectively, larger and shorter diameter). Cyclic voltammetry of the SD-MWCNT-modified electrode showed a 200–300mV decrease in the overpotential of oxidation reactions of both drugs and an increase in current (2 to 3.5-fold) in comparison with the LD-MWCNT-modified and unmodified electrodes. Similarly, the amperometric determination of both drugs using the SD-MWCNT-modified electrode presented an increase in sensitivity in comparison with LD-MWCNT-modified electrode (2 to 2.8-fold). Improved performance of the SD-MWCNT-modified electrode was in agreement with electrochemical impedance spectroscopy measurements. These results indicate the higher electrocatalytic activity of SD-MWCNTs, which can be explained by the increased defect density revealed by Raman spectroscopic measurements. Additionally, we report the first amperometric method for IBF determination using the SD-MWCNT-modified electrode, with a linear range from 10 to 1000μmolL−1, detection limit of 1.9μmolL−1, precision of 4%, and accuracy attested by capillary electrophoresis analyses. The superior electrochemical activity of multi-walled carbon nanotubes (MWCNTs) of shorter dimensions towards the oxidation of propionic acid derivative drugs, namely ibuprofen (IBF) and naproxen (NPX), is presented. A glassy-carbon electrode was modified with MWCNTs of different sizes (diameter×length: 100–170nm×5–9μm and 6–9nm×5μm, corresponding to LD- and SD-MWCNTs, respectively, larger and shorter diameter). Cyclic voltammetry of the SD-MWCNT-modified electrode showed a 200–300mV decrease in the overpotential of oxidation reactions of both drugs and an increase in current (2 to 3.5-fold) in comparison with the LD-MWCNT-modified and unmodified electrodes. Similarly, the amperometric determination of both drugs using the SD-MWCNT-modified electrode presented an increase in sensitivity in comparison with LD-MWCNT-modified electrode (2 to 2.8-fold). Improved performance of the SD-MWCNT-modified electrode was in agreement with electrochemical impedance spectroscopy measurements. These results indicate the higher electrocatalytic activity of SD-MWCNTs, which can be explained by the increased defect density revealed by Raman spectroscopic measurements. Additionally, we report the first amperometric method for IBF determination using the SD-MWCNT-modified electrode, with a linear range from 10 to 1000μmolL−1, detection limit of 1.9μmolL−1, precision of 4%, and accuracy attested by capillary electrophoresis analyses. Lima, Ana P. oth Cunha, Rafael R. oth Guedes, Tiago J. oth dos Santos, Wallans T.P. oth Nossol, Edson oth Richter, Eduardo M. oth Munoz, Rodrigo A.A. oth Enthalten in Elsevier Zhou, Haidong ELSEVIER Enhancement with physicochemical and biological treatments in the removal of pharmaceutically active compounds during sewage sludge anaerobic digestion processes 2017 an international journal devoted to all aspects of electrode kinetics, interfacial structure, properties of electrolytes, colloid and biological electrochemistry New York, NY [u.a.] (DE-627)ELV014792559 volume:775 year:2016 day:15 month:08 pages:342-349 extent:8 https://doi.org/10.1016/j.jelechem.2016.06.026 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_22 GBV_ILN_40 GBV_ILN_105 51.00 Werkstoffkunde: Allgemeines VZ AR 775 2016 15 0815 342-349 8 045F 540 |
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Enhancement with physicochemical and biological treatments in the removal of pharmaceutically active compounds during sewage sludge anaerobic digestion processes |
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Montes, Rodrigo H.O. @@aut@@ Lima, Ana P. @@oth@@ Cunha, Rafael R. @@oth@@ Guedes, Tiago J. @@oth@@ dos Santos, Wallans T.P. @@oth@@ Nossol, Edson @@oth@@ Richter, Eduardo M. @@oth@@ Munoz, Rodrigo A.A. @@oth@@ |
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size effects of multi-walled carbon nanotubes on the electrochemical oxidation of propionic acid derivative drugs: ibuprofen and naproxen |
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Size effects of multi-walled carbon nanotubes on the electrochemical oxidation of propionic acid derivative drugs: Ibuprofen and naproxen |
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The superior electrochemical activity of multi-walled carbon nanotubes (MWCNTs) of shorter dimensions towards the oxidation of propionic acid derivative drugs, namely ibuprofen (IBF) and naproxen (NPX), is presented. A glassy-carbon electrode was modified with MWCNTs of different sizes (diameter×length: 100–170nm×5–9μm and 6–9nm×5μm, corresponding to LD- and SD-MWCNTs, respectively, larger and shorter diameter). Cyclic voltammetry of the SD-MWCNT-modified electrode showed a 200–300mV decrease in the overpotential of oxidation reactions of both drugs and an increase in current (2 to 3.5-fold) in comparison with the LD-MWCNT-modified and unmodified electrodes. Similarly, the amperometric determination of both drugs using the SD-MWCNT-modified electrode presented an increase in sensitivity in comparison with LD-MWCNT-modified electrode (2 to 2.8-fold). Improved performance of the SD-MWCNT-modified electrode was in agreement with electrochemical impedance spectroscopy measurements. These results indicate the higher electrocatalytic activity of SD-MWCNTs, which can be explained by the increased defect density revealed by Raman spectroscopic measurements. Additionally, we report the first amperometric method for IBF determination using the SD-MWCNT-modified electrode, with a linear range from 10 to 1000μmolL−1, detection limit of 1.9μmolL−1, precision of 4%, and accuracy attested by capillary electrophoresis analyses. |
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The superior electrochemical activity of multi-walled carbon nanotubes (MWCNTs) of shorter dimensions towards the oxidation of propionic acid derivative drugs, namely ibuprofen (IBF) and naproxen (NPX), is presented. A glassy-carbon electrode was modified with MWCNTs of different sizes (diameter×length: 100–170nm×5–9μm and 6–9nm×5μm, corresponding to LD- and SD-MWCNTs, respectively, larger and shorter diameter). Cyclic voltammetry of the SD-MWCNT-modified electrode showed a 200–300mV decrease in the overpotential of oxidation reactions of both drugs and an increase in current (2 to 3.5-fold) in comparison with the LD-MWCNT-modified and unmodified electrodes. Similarly, the amperometric determination of both drugs using the SD-MWCNT-modified electrode presented an increase in sensitivity in comparison with LD-MWCNT-modified electrode (2 to 2.8-fold). Improved performance of the SD-MWCNT-modified electrode was in agreement with electrochemical impedance spectroscopy measurements. These results indicate the higher electrocatalytic activity of SD-MWCNTs, which can be explained by the increased defect density revealed by Raman spectroscopic measurements. Additionally, we report the first amperometric method for IBF determination using the SD-MWCNT-modified electrode, with a linear range from 10 to 1000μmolL−1, detection limit of 1.9μmolL−1, precision of 4%, and accuracy attested by capillary electrophoresis analyses. |
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The superior electrochemical activity of multi-walled carbon nanotubes (MWCNTs) of shorter dimensions towards the oxidation of propionic acid derivative drugs, namely ibuprofen (IBF) and naproxen (NPX), is presented. A glassy-carbon electrode was modified with MWCNTs of different sizes (diameter×length: 100–170nm×5–9μm and 6–9nm×5μm, corresponding to LD- and SD-MWCNTs, respectively, larger and shorter diameter). Cyclic voltammetry of the SD-MWCNT-modified electrode showed a 200–300mV decrease in the overpotential of oxidation reactions of both drugs and an increase in current (2 to 3.5-fold) in comparison with the LD-MWCNT-modified and unmodified electrodes. Similarly, the amperometric determination of both drugs using the SD-MWCNT-modified electrode presented an increase in sensitivity in comparison with LD-MWCNT-modified electrode (2 to 2.8-fold). Improved performance of the SD-MWCNT-modified electrode was in agreement with electrochemical impedance spectroscopy measurements. These results indicate the higher electrocatalytic activity of SD-MWCNTs, which can be explained by the increased defect density revealed by Raman spectroscopic measurements. Additionally, we report the first amperometric method for IBF determination using the SD-MWCNT-modified electrode, with a linear range from 10 to 1000μmolL−1, detection limit of 1.9μmolL−1, precision of 4%, and accuracy attested by capillary electrophoresis analyses. |
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Size effects of multi-walled carbon nanotubes on the electrochemical oxidation of propionic acid derivative drugs: Ibuprofen and naproxen |
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Additionally, we report the first amperometric method for IBF determination using the SD-MWCNT-modified electrode, with a linear range from 10 to 1000μmolL−1, detection limit of 1.9μmolL−1, precision of 4%, and accuracy attested by capillary electrophoresis analyses.</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">The superior electrochemical activity of multi-walled carbon nanotubes (MWCNTs) of shorter dimensions towards the oxidation of propionic acid derivative drugs, namely ibuprofen (IBF) and naproxen (NPX), is presented. A glassy-carbon electrode was modified with MWCNTs of different sizes (diameter×length: 100–170nm×5–9μm and 6–9nm×5μm, corresponding to LD- and SD-MWCNTs, respectively, larger and shorter diameter). Cyclic voltammetry of the SD-MWCNT-modified electrode showed a 200–300mV decrease in the overpotential of oxidation reactions of both drugs and an increase in current (2 to 3.5-fold) in comparison with the LD-MWCNT-modified and unmodified electrodes. Similarly, the amperometric determination of both drugs using the SD-MWCNT-modified electrode presented an increase in sensitivity in comparison with LD-MWCNT-modified electrode (2 to 2.8-fold). Improved performance of the SD-MWCNT-modified electrode was in agreement with electrochemical impedance spectroscopy measurements. These results indicate the higher electrocatalytic activity of SD-MWCNTs, which can be explained by the increased defect density revealed by Raman spectroscopic measurements. Additionally, we report the first amperometric method for IBF determination using the SD-MWCNT-modified electrode, with a linear range from 10 to 1000μmolL−1, detection limit of 1.9μmolL−1, precision of 4%, and accuracy attested by capillary electrophoresis analyses.</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Lima, Ana P.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Cunha, Rafael R.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Guedes, Tiago J.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">dos Santos, Wallans T.P.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Nossol, Edson</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Richter, Eduardo M.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Munoz, Rodrigo A.A.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="n">Elsevier</subfield><subfield code="a">Zhou, Haidong ELSEVIER</subfield><subfield code="t">Enhancement with physicochemical and biological treatments in the removal of pharmaceutically active compounds during sewage sludge anaerobic digestion processes</subfield><subfield code="d">2017</subfield><subfield code="d">an international journal devoted to all aspects of electrode kinetics, interfacial structure, properties of electrolytes, colloid and biological electrochemistry</subfield><subfield code="g">New York, NY [u.a.]</subfield><subfield code="w">(DE-627)ELV014792559</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:775</subfield><subfield code="g">year:2016</subfield><subfield code="g">day:15</subfield><subfield code="g">month:08</subfield><subfield code="g">pages:342-349</subfield><subfield code="g">extent:8</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://doi.org/10.1016/j.jelechem.2016.06.026</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ELV</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_22</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_40</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_105</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">51.00</subfield><subfield code="j">Werkstoffkunde: Allgemeines</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">775</subfield><subfield code="j">2016</subfield><subfield code="b">15</subfield><subfield code="c">0815</subfield><subfield code="h">342-349</subfield><subfield code="g">8</subfield></datafield><datafield tag="953" ind1=" " ind2=" "><subfield code="2">045F</subfield><subfield code="a">540</subfield></datafield></record></collection>
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