Electrochemical Selective and Simultaneous Detection of Diclofenac and Ibuprofen in Aqueous Solution Using HKUST-1 Metal-Organic Framework-Carbon Nanofiber Composite Electrode
In this study, the detection protocols for the individual, selective, and simultaneous determination of ibuprofen (IBP) and diclofenac (DCF) in aqueous solutions have been developed using HKUST-1 metal-organic framework-carbon nanofiber composite (HKUST-CNF) electrode. The morphological and electric...
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MDPI AG
2016-10-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/16/10/1719 |
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| author | Sorina Motoc Florica Manea Adriana Iacob Alberto Martinez-Joaristi Jorge Gascon Aniela Pop Joop Schoonman |
| author_facet | Sorina Motoc Florica Manea Adriana Iacob Alberto Martinez-Joaristi Jorge Gascon Aniela Pop Joop Schoonman |
| author_sort | Sorina Motoc |
| collection | DOAJ |
| description | In this study, the detection protocols for the individual, selective, and simultaneous determination of ibuprofen (IBP) and diclofenac (DCF) in aqueous solutions have been developed using HKUST-1 metal-organic framework-carbon nanofiber composite (HKUST-CNF) electrode. The morphological and electrical characterization of modified composite electrode prepared by film casting was studied by scanning electronic microscopy and four-point-probe methods. The electrochemical characterization of the electrode by cyclic voltammetry (CV) was considered the reference basis for the optimization of the operating conditions for chronoamperometry (CA) and multiple-pulsed amperometry (MPA). This electrode exhibited the possibility to selectively detect IBP and DCF by simple switching the detection potential using CA. However, the MPA operated under optimum working conditions of four potential levels selected based on CV shape in relation to the potential value, pulse time, and potential level number, and order allowed the selective/simultaneous detection of IBP and DCF characterized by the enhanced detection performance. For this application, the HKUST-CNF electrode exhibited a good stability and reproducibility of the results was achieved. |
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| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T21:44:38Z |
| publishDate | 2016-10-01 |
| publisher | MDPI AG |
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| spelling | doaj.art-1b04cba75ee8407685dc1fbb254c908d2022-12-22T04:01:27ZengMDPI AGSensors1424-82202016-10-011610171910.3390/s16101719s16101719Electrochemical Selective and Simultaneous Detection of Diclofenac and Ibuprofen in Aqueous Solution Using HKUST-1 Metal-Organic Framework-Carbon Nanofiber Composite ElectrodeSorina Motoc0Florica Manea1Adriana Iacob2Alberto Martinez-Joaristi3Jorge Gascon4Aniela Pop5Joop Schoonman6Institute of Chemistry Timisoara of Romanian Academy, Mihai Viteazul 24, Timisoara 300223, RomaniaPolitehnica University of Timisoara, P-ta Victoriei no.2, Timisoara 300006, RomaniaS.C. DATCOMP S.R.L, Str.Dr.Iosif Nemoianu nr 16/4, Timisoara 300011, RomaniaMaterials for Energy Conversion and Storage, Department of Chemical Engineering, Delft University of Technology, Julianalaan 136, Delft 2626 BL, The NetherlandsMaterials for Energy Conversion and Storage, Department of Chemical Engineering, Delft University of Technology, Julianalaan 136, Delft 2626 BL, The NetherlandsPolitehnica University of Timisoara, P-ta Victoriei no.2, Timisoara 300006, RomaniaMaterials for Energy Conversion and Storage, Department of Chemical Engineering, Delft University of Technology, Julianalaan 136, Delft 2626 BL, The NetherlandsIn this study, the detection protocols for the individual, selective, and simultaneous determination of ibuprofen (IBP) and diclofenac (DCF) in aqueous solutions have been developed using HKUST-1 metal-organic framework-carbon nanofiber composite (HKUST-CNF) electrode. The morphological and electrical characterization of modified composite electrode prepared by film casting was studied by scanning electronic microscopy and four-point-probe methods. The electrochemical characterization of the electrode by cyclic voltammetry (CV) was considered the reference basis for the optimization of the operating conditions for chronoamperometry (CA) and multiple-pulsed amperometry (MPA). This electrode exhibited the possibility to selectively detect IBP and DCF by simple switching the detection potential using CA. However, the MPA operated under optimum working conditions of four potential levels selected based on CV shape in relation to the potential value, pulse time, and potential level number, and order allowed the selective/simultaneous detection of IBP and DCF characterized by the enhanced detection performance. For this application, the HKUST-CNF electrode exhibited a good stability and reproducibility of the results was achieved.http://www.mdpi.com/1424-8220/16/10/1719electrochemical selective and simultaneous detectionmetal-organic framework-carbon nanofiber composite electrodeibuprofendiclofenaccyclic voltammetrychronoamperometrymultiple-pulsed amperometry |
| spellingShingle | Sorina Motoc Florica Manea Adriana Iacob Alberto Martinez-Joaristi Jorge Gascon Aniela Pop Joop Schoonman Electrochemical Selective and Simultaneous Detection of Diclofenac and Ibuprofen in Aqueous Solution Using HKUST-1 Metal-Organic Framework-Carbon Nanofiber Composite Electrode Sensors electrochemical selective and simultaneous detection metal-organic framework-carbon nanofiber composite electrode ibuprofen diclofenac cyclic voltammetry chronoamperometry multiple-pulsed amperometry |
| title | Electrochemical Selective and Simultaneous Detection of Diclofenac and Ibuprofen in Aqueous Solution Using HKUST-1 Metal-Organic Framework-Carbon Nanofiber Composite Electrode |
| title_full | Electrochemical Selective and Simultaneous Detection of Diclofenac and Ibuprofen in Aqueous Solution Using HKUST-1 Metal-Organic Framework-Carbon Nanofiber Composite Electrode |
| title_fullStr | Electrochemical Selective and Simultaneous Detection of Diclofenac and Ibuprofen in Aqueous Solution Using HKUST-1 Metal-Organic Framework-Carbon Nanofiber Composite Electrode |
| title_full_unstemmed | Electrochemical Selective and Simultaneous Detection of Diclofenac and Ibuprofen in Aqueous Solution Using HKUST-1 Metal-Organic Framework-Carbon Nanofiber Composite Electrode |
| title_short | Electrochemical Selective and Simultaneous Detection of Diclofenac and Ibuprofen in Aqueous Solution Using HKUST-1 Metal-Organic Framework-Carbon Nanofiber Composite Electrode |
| title_sort | electrochemical selective and simultaneous detection of diclofenac and ibuprofen in aqueous solution using hkust 1 metal organic framework carbon nanofiber composite electrode |
| topic | electrochemical selective and simultaneous detection metal-organic framework-carbon nanofiber composite electrode ibuprofen diclofenac cyclic voltammetry chronoamperometry multiple-pulsed amperometry |
| url | http://www.mdpi.com/1424-8220/16/10/1719 |
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