Print Email Facebook Twitter Electrochemical Selective and Simultaneous Detection of Diclofenac and Ibuprofen in Aqueous Solution Using HKUST-1 Metal-Organic Framework-Carbon Nanofiber Composite Electrode Title Electrochemical Selective and Simultaneous Detection of Diclofenac and Ibuprofen in Aqueous Solution Using HKUST-1 Metal-Organic Framework-Carbon Nanofiber Composite Electrode Author Motoc, Sorina (Romanian Academy) Manea, F. (Politehnica University of Timisoara) Iacob, Adriana (S.C. DATCOMP S.R.L) Martinez Joaristi, A.E. (TU Delft ChemE/Catalysis Engineering) Gascon, Jorge (TU Delft ChemE/Catalysis Engineering) Pop, A.C. (Politehnica University of Timisoara) Schoonman, J. (TU Delft ChemE/Materials for Energy Conversion and Storage) Date 2016-10-17 Abstract 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. Subject ChronoamperometryCyclic voltammetryDiclofenacElectrochemical selective and simultaneous detectionIbuprofenMetal-organic framework-carbon nanofiber composite electrodeMultiple-pulsed amperometry To reference this document use: http://resolver.tudelft.nl/uuid:51d08c0b-f457-42ea-bceb-4c1ce75aed34 DOI https://doi.org/10.3390/s16101719 ISSN 1424-8220 Source Sensors, 16 (10) Part of collection Institutional Repository Document type journal article Rights © 2016 Sorina Motoc, F. Manea, Adriana Iacob, A.E. Martinez Joaristi, Jorge Gascon, A.C. Pop, J. Schoonman Files PDF sensors_16_01719.pdf 1.34 MB Close viewer /islandora/object/uuid:51d08c0b-f457-42ea-bceb-4c1ce75aed34/datastream/OBJ/view