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Multi-walled carbon nanotubes functionalized with bathocuproinedisulfonic acid: Analytical applications for the quantification of Cu(II)
(Springer Heidelberg, 2020-08)
This work reports the successful non-covalent functionalization of multi-walled carbon nanotubes (MWCNTs) with bathocuproinedisulfonic acid (BCS) and the analytical application of the resulting dispersion (MWCNTs-BCS) to ...
Multidimensional voltammetry: Four-way multivariate calibration with third-order differential pulse voltammetric data for multi-analyte quantification in the presence of uncalibrated interferences
(Elsevier Science, 2015-11)
A four-way multivariate calibration approach based on the combination of differential pulse voltammetric (DPV) data and four-way algorithms is described for the first time. To achieve this goal, the DPV response of each ...
Non-covalent functionalization of multi-walled carbon nanotubes with cytochrome c: Enhanced direct electron transfer and analytical applications
(Elsevier Science Sa, 2016-03-31)
This work reports the non-covalent functionalization (dispersion) of multi-walled carbon nanotubes (MWCNTs) with cytochrome c (Cyt c), the direct electron transfer (DET) after drop-coating deposition of MWCNTs-Cyt c ...
Multi-analyte quantification in bioprocesses by FTIR spectroscopy using Partial Least Squares Regression and Multivariate Curve Resolution
(Elsevier Science, 2014-01)
This paper presents the quantification of Penicillin V and phenoxyacetic acid, a precursor, inline during Pencillium chrysogenum fermentations by FTIR spectroscopy and partial least squares (PLS) regression and multivariate ...
Glassy carbon electrodes modified with a dispersion of multi-wall carbon nanotubes in dopamine-functionalized polyethylenimine: Characterization and analytical applications for nicotinamide adenine dinucleotide quantification
(Pergamon-Elsevier Science Ltd, 2012-06)
We report the characterization of a dispersion of multi-wall carbon nanotubes (CNT) in a solution of polyethylenimine (PEI) functionalized with dopamine (Do), the electrochemical behavior of glassy carbon electrodes (GCE) ...
Quantification of caffeine in dietary supplements and energy drinks by solid-surface fluorescence using a pre-concentration step on multi-walled carbon nanotubes and Rhodamine B
(Taylor & Francis, 2014-06)
A new method for the determination of caffeine, a non-fluorescent analyte, based on the enhancement of the fluorescence of Rhodamine B dye on a membrane filter modified with multi-walled carbon nanotubes is proposed. The ...
Non-covalent functionalization of multi-wall carbon nanotubes with polyarginine: Characterization and analytical applications for uric acid quantification
(Wiley VCH Verlag, 2018-07)
We report for the first time the non-covalent functionalization of multiwall carbon nanotubes (MWCNTs) with polyarginine (Polyarg), the modification of glassy carbon electrodes (GCE) with the resulting Polyarg-MWCNTs ...
An eco-friendly method for analysis of sulfonamides in water samples using a multi-pumping system
(2016-08-05)
A new methodology for determination of sulfonamides (sulfaquinoxaline, sulfathiazole, and sulfadimethoxine) in water samples was developed by coupling an automated multi-pumping flow system (MPFS) with a liquid waveguide ...
Simultaneous quantification of seven multi-class organic molecules by single-shot dilution differential pulse voltammetric calibration
(2022-01-15)
The contamination of water sources by anthropogenic activities is a topic of growing interest in the scientific community. Therefore, robust analytical techniques for the determination and quantification of multiple ...
Total Reflection X-ray Fluorescence: a valuable analytic tool for environmental and biological studies
(Vibgyor, 2017-08)
This review collects the research of the recent years on biological or environmental studies in which Total Reflection X-Ray Fluorescence Spectrometry (TXRF) was used as a chemical analytical technique for quantification ...