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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Del Valle, Manel
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (37/37 displayed)
- 2021Wavelet neural networks
- 2020Improved Sensing of Capsaicin with TiO2 Nanoparticles Modified Epoxy Graphite Electrode
- 2018Bioelectronic tongue using MIP sensors for the resolution of volatile phenolic compounds
- 2018Multivariate Determination of Total Sugar Content and Ethanol in Bioethanol Production Using Carbon Electrodes Modified with MWCNT/MeOOH and Chemometric Data Treatment
- 2018Label-free aptasensor for lysozyme detection using electrochemical impedance spectroscopycitations
- 2017Molecularly imprinted polymers for TNT analogues :citations
- 2017Graphene electrode platform for impedimetric aptasensing
- 2016Analysis of Amino Acid Mixtures by Voltammetric Electronic Tongues and Artificial Neural Networks
- 2016Simultaneous Voltammetric Determination of Heavy Metals by Use of Crown Ether-modified Electrodes and Chemometricscitations
- 2016Resolution of galactose, glucose, xylose and mannose in sugarcane bagasse employing a voltammetric electronic tongue formed by metals oxy-hydroxide/MWCNT modified electrodescitations
- 2015Crown ether-modified electrodes for the simultaneous stripping voltammetric determination of Cd(II), Pb(II) and Cu(II)citations
- 2015DNA polymorphism sensitive impedimetric detection on gold-nanoislands modified electrodescitations
- 2014Discrimination of Soils and Assessment of Soil Fertility Using Information from an Ion Selective Electrodes Array and Artificial Neural Networkscitations
- 2014Label-free impedimetric aptasensor based on epoxy-graphite electrode for the recognition of cytochrome c
- 2014A comparison of four protocols for the immobilization of an aptamer on graphite composite electrodes
- 2014Array of peptide-modified electrodes for the simultaneous determination of Pb(II), Cd(II) and Zn(II)
- 2014Pd nanoparticles/multiwalled carbon nanotubes electrode system for voltammetric sensing of tyrosinecitations
- 2014Impedimetric DNA Biosensors Based on Nanomaterialscitations
- 2012Determination of total polyphenol index in wines employing a voltammetric electronic tonguecitations
- 2012Impedimetric DNA Sensing Employing Nanomaterialscitations
- 2012A reusable impedimetric aptasensor for detection of thrombin employing a graphite-epoxy composite electrodecitations
- 2011Multiway processing of data generated with a potentiometric electronic tongue in a SIA systemcitations
- 2011A new amperometric bienzymatic biosensor based on biocomposites for the determination of gluconic acid in winescitations
- 2010Use of Sequential Injection Analysis to construct a potentiometric electronic tongue: Application to the multidetermination of heavy metalscitations
- 2009Electrochemical immunosensor for the diagnosis of celiac diseasecitations
- 2009Resolution of heavy metal mixtures from highly overlapped ASV voltammograms employing a wavelet neural networkcitations
- 2007EIS multianalyte sensing with an automated SIA system-An electronic tongue employing the impedimetric signalcitations
- 2007Application of the avidin-biotin interaction to immobilize DNA in the development of electrochemical impedance genosensorscitations
- 2007Multicomponent titration of calcium + magnesium mixtures employing a potentiometric electronic-tonguecitations
- 2006Impedimetric genosensors for the detection of DNA hybridizationcitations
- 2006Genomagnetic assay based on label-free electrochemical detection using magneto-composite electrodescitations
- 2006Urea impedimetric biosensor based on polymer degradation onto interdigitated electrodescitations
- 2005Integration of a glucose biosensor based on an epoxy-graphite- TTF·TCNQ-GOD biocomposite into a FIA systemcitations
- 2005Glucose biosensor based on carbon nanotube epoxy compositescitations
- 2005Sensitive stripping voltammetry of heavy metals by using a composite sensor based on a built-in bismuth precursorcitations
- 2004Renewable Protein A modified graphite-epoxy composite for electrochemical immunosensingcitations
- 2004Rigid carbon composites: A new transducing material for label-free electrochemical genosensingcitations
Places of action
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article
Crown ether-modified electrodes for the simultaneous stripping voltammetric determination of Cd(II), Pb(II) and Cu(II)
Abstract
© 2015 Elsevier B.V. All rights reserved. This work describes the immobilization of 4-carboxybenzo-18-crown-6 (CB-18-crown-6) and 4-carboxybenzo-15-crown-5 (CB-15-crown-5) assisted by lysine on aryl diazonium salt monolayers anchored to the surface of graphite-epoxy composite electrodes (GEC), and their use for the simultaneous determination of Cd(II), Pb(II) and Cu(II) by differential pulse anodic stripping voltammetry (DPASV). These modified electrodes display a good repeatability and reproducibility with detection and quantification limits at levels of μg L-1 (ppb), confirming their suitability for the determination of Cd(II), Pb(II) and Cu(II) ions in environmental samples. The overlapped nature of the multimetal stripping measurements was resolved by employing the two-sensor array CB-15-crown-5-GEC and CB-18-crown-6-GEC, since the metal complex selectivity exhibited by the considered ligands could add some discrimination power. For the processing of the voltammograms, Discrete Wavelet Transform and Causal Index were selected as preprocessing tools for data compression coupled with an artificial neural network for the modeling of the obtained responses, allowing the resolution of mixtures of these metals with good prediction of their concentrations (correlation with expected values for an external test subset better than 0.942).