β–Cyclodextrins incorporated multi-walled carbon nanotubes modified electrode for the voltammetric determination of the pesticide dichlorophen

Sipa, Karolina; Brycht, Mariola; Leniart, Andrzej; Urbaniak, Paweł; Nosal‐Wiercińska, Agnieszka; Pałecz, Bartłomiej; Skrzypek, Sławomira

doi:10.1016/j.talanta.2017.07.084

Cited by 55 publications

(25 citation statements)

References 42 publications

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“…Another study revealed that a fullerene-C 60 -modified glassy carbon electrode can remarkably enhance electrocatalytic activity towards the oxidation of ACV [15]. Recently, some studies reported the implementation of host-guest chemistry of cyclodextrins to enhance the sensors sensitivity [24][25][26][27][28]. In the next work multiwalled carbon nanotube/tiron-doped polypyrrole for to measure ACV was proposed that offers high stability and good reproducibility and satisfactory results for the determination of ACV in real samples [17].…”

Section: Introductionmentioning

confidence: 99%

“…The electrochemical response of ACV can be enhanced by using electrodes modified by cyclodextrin, which interact strongly with ACV in order to achieve pre-concentration of the analyte at the electrode surface. Recently, some studies reported the implementation of host-guest chemistry of cyclodextrins to enhance the sensors sensitivity [24][25][26][27][28]. b-Cyclodextrin (b-CD) is a cyclic oligosaccharide produced from starch via enzymatic conversion.…”

Section: Introductionmentioning

confidence: 99%

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Preparation of a Double‐step Modified Carbon Paste Electrode for Trace Quantification of Acyclovir Using TiO₂ Nanoparticle and β‐Cyclodextrin

2018

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In this work we reported, a simple and reproducible double‐step modified carbon paste electrode (CPE) for recognition and designation of Acyclovir (ACV). In the first stage, for acquiring the structure of TiO2 NPs‐CPE, 5 % TiO2 nanoparticles (NPs) doped into the electrode tissue. In the second stage, β‐Cyclodextrin (β‐CD) anchored on the TiO2 NPs‐CPE surface by electropolymerization which yields a β‐CD/TiO2 NPs‐CPE. Topography, characteristics and electrochemical response of the fabricated electrodes with such techniques as: the field emission scanning electron microscopy (FESEM), chronocoulometry (CC), cyclic voltammetry (CV) and differential pulse voltammetry (DPV) were analyzed. Also the spent TiO2 NPs powders were characterized by X‐ray diffraction (XRD). The results illustrated that this sensor designed efficiently increases the surface area of composite electrode and the performance of the oxidation of ACV at the surface modified electrode compared to the bare electrode improved. Under the desirable situations, the proposed of analytical procedure was proved to be applicable in two linear calibration ranges betwixt 0.09 to 2.98 and 2.98 to 47.61 μM. The detection limit was estimated for low concentrations ACV 21 nM (S/N=3). Eventually, the fabricated composite electrode was successfully applied for the detection of trace amounts of the ACV in the blood serum samples.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preparation of a Double‐step Modified Carbon Paste Electrode for Trace Quantification of Acyclovir Using TiO₂ Nanoparticle and β‐Cyclodextrin

2018

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“…The most commonly used as working electrodes in electroanalytical chemistry are carbonbased electrodes, such as graphite [11][12][13], glassy carbon [14,15], or carbon paste electrodes [16,17]. In order to improve the sensitivity and detection limit of the bare carbon-based electrodes, the modification of their surfaces can be performed with nanomaterials, such as for example graphene [18][19][20][21][22], carbon nanotubes [23][24][25][26], metal nanoparticles [21,27,28], etc. Nanomaterials exhibit extraordinary electrical and physical properties, and they are very often used for the electrode surface modifications.…”

Section: Introductionmentioning

confidence: 99%

An application of a glassy carbon electrode and a glassy carbon electrode modified with multi-walled carbon nanotubes in electroanalytical determination of oxycarboxin

Leniart

Brycht

Burnat

et al. 2018

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An electrochemical procedure for the quantitative determination of oxycarboxin at a glassy carbon electrode (GCE) and a glassy carbon electrode modified with multi-walled carbon nanotubes (GCE/MWCNTs) based on square wave adsorptive stripping voltammetry (SWAdSV) is presented for the first time. The effect of an amplitude (E SW ), a frequency ( f ), a step potential (ΔE s ), an accumulation potential (E acc ) and time (t acc ), and equilibration time (t eq ) was investigated. The best analytical signal was obtained in the medium of sulfuric acid on both electrodes. Under optimal analytical conditions, the linear ranges of Oxy concentrations 8.0 × 10 −6 -5.0 × 10 −5 mol L −1 with limit of detection of 2.0 × 10 −6 mol L −1 for bare GCE and 6.0 × 10 −6 -9.0 × 10 −5 mol L −1 with limit of detection of 1.1 × 10 −6 mol L −1 for GCE/MWCNTs were obtained. To investigate the utility of the proposed method for the determination of oxycarboxin in real samples, a quantitative determination of Oxy was performed in spiked river water samples. The electrode processes of oxycarboxin oxidation were studied by cyclic voltammetry (CV) at both electrodes. The surface characterization of bare GCE and GCE/MWCNTs was evaluated with an atomic force microscopy (AFM) and a scanning electron microscopy (SEM).

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“…Multi-walled carbon nanotubes (MWCNT), first discovered in 1991 [27], are especially attractive as electrode modifiers, due to their excellent electronic, thermal, mechanical, and catalytic properties [28,29]. From the electrochemical perspective, their use increases the active area and improves electron transfer reactions, resulting in higher detection capability and better peak separation [30,31].…”

Section: Introductionmentioning

confidence: 99%

Adsorptive stripping voltammetry for simultaneous determination of hydrochlorothiazide and triamterene in hemodialysis samples using a multi-walled carbon nanotube-modified glassy carbon electrode

Hudari

Souza

Zanoni

2018

Talanta

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Hemodialysis is the most commonly used method for the treatment of chronic kidney disease. In this procedure, some patients use diuretics to control weight gain and blood pressure. In this work, a voltammetric sensor based on a glassy carbon electrode modified with carbon nanotubes (GCE/MWCNT) is described for the simultaneous determination of the diuretics hydrochlorothiazide (HCT) and triamterene (TRT). The oxidation of the diuretics on the GCE/MWCNT surface was observed at 1.01 and 1.17V for HCT and TRT, respectively, allowing simultaneous determination, which was not possible with the unmodified glassy carbon electrode. The GCE/MWCNT electrode provided 6-fold and 10-fold gains in anode peak intensity for HCT and TRT, respectively, compared to the unmodified electrode. After optimization of the conditions (pH, accumulation time, and accumulation potential), analytical curves were constructed for the analytes in the range from 1.0 × 10 to 2.0 × 10molL. The detection limits for HCT and TRT were 2.8 × 10 and 2.9 × 10molL, respectively. A high performance liquid chromatography method with diode array detection was also developed for the determination of HCT and TRT in hemodialysis samples, for comparison with the electroanalytical method.

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β–Cyclodextrins incorporated multi-walled carbon nanotubes modified electrode for the voltammetric determination of the pesticide dichlorophen

Cited by 55 publications

References 42 publications

Preparation of a Double‐step Modified Carbon Paste Electrode for Trace Quantification of Acyclovir Using TiO₂ Nanoparticle and β‐Cyclodextrin

Preparation of a Double‐step Modified Carbon Paste Electrode for Trace Quantification of Acyclovir Using TiO₂ Nanoparticle and β‐Cyclodextrin

An application of a glassy carbon electrode and a glassy carbon electrode modified with multi-walled carbon nanotubes in electroanalytical determination of oxycarboxin

Adsorptive stripping voltammetry for simultaneous determination of hydrochlorothiazide and triamterene in hemodialysis samples using a multi-walled carbon nanotube-modified glassy carbon electrode

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β–Cyclodextrins incorporated multi-walled carbon nanotubes modified electrode for the voltammetric determination of the pesticide dichlorophen

Cited by 55 publications

References 42 publications

Preparation of a Double‐step Modified Carbon Paste Electrode for Trace Quantification of Acyclovir Using TiO2 Nanoparticle and β‐Cyclodextrin

Preparation of a Double‐step Modified Carbon Paste Electrode for Trace Quantification of Acyclovir Using TiO2 Nanoparticle and β‐Cyclodextrin

An application of a glassy carbon electrode and a glassy carbon electrode modified with multi-walled carbon nanotubes in electroanalytical determination of oxycarboxin

Adsorptive stripping voltammetry for simultaneous determination of hydrochlorothiazide and triamterene in hemodialysis samples using a multi-walled carbon nanotube-modified glassy carbon electrode

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Preparation of a Double‐step Modified Carbon Paste Electrode for Trace Quantification of Acyclovir Using TiO₂ Nanoparticle and β‐Cyclodextrin

Preparation of a Double‐step Modified Carbon Paste Electrode for Trace Quantification of Acyclovir Using TiO₂ Nanoparticle and β‐Cyclodextrin