Voltammetric studies of hexachromic anion transfer reactions across micro-water/polyvinylchloride-2-nitrophenyloctylether gel interfaces for sensing applications

Hossain, Md. Mokarrom; Lee, Sang Hyuk; Devaud, Valérie; Lee, Hye Jin

doi:10.1016/j.electacta.2012.03.127

Cited by 19 publications

(15 citation statements)

References 32 publications

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“…The stripping peak current increased as the pre-concentration time increased, eventually reaching a constant value, as illustrated in the inset graph. This effect was reported previously for the detection of perchlorate [35] and hexachromic anions [36] at the micro-ITIES array and was attributed to the diffusion of the analyte away from the interface to the bulk organic phase during the longer pre-concentration times. Therefore, during the stripping step, these analytes are not stripped back to the aqueous phase and do not contribute to the stripping peak.…”

Section: Optimisation Of the Acsv Parameters For The Detection Of Reosupporting

confidence: 75%

Amperometric Determination of Perrhenate Anion Using a Microscopic Interfaces Between Two Immiscible Electrolyte Solutions

et al. 2018

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Voltammetric responses associated with the simple reaction of perrhenate anions transfer across polarized micro-interfaces between two immiscible electrolyte solutions (micro-ITIES) was investigated, and their sensing applications were demonstrated. The micro-ITIES array was formed at polyethylene terephthalate membranes containing a 196 microhole array of radius 10.0±0.1 μm using a femtosecond laser. The characteristics of perrhenate ions transfer at the water/2-nitrophenyloctyl ether interface were first investigated using cyclic voltammetry (CV). CV was used in the estimation of some of the perrhenate anions thermodynamic parameters, such as the formal transfer potential and the Gibbs transfer energy. The technique of alternating current stripping voltammetry (ACSV) was also utilized to improve the sensitivity of the perrhenate anion detection. Under optimized preconcentration and detection conditions, a limit of detection of 0.3 μM with a wide linear dynamic range extending from 1.0 to 100 μM was achieved. The effect of various potential interfering anions on the perrhenate sensor was also investigated and an excellent selectivity over SCN-, I-, NO3-, NO2-, CO32-, SO42-, MoO42-, WO42- and CH3COO- ions was also achieved. This enabled quantitative measurements of rhenium in some mineral raw samples and the data was also validated by comparing with inductively coupled plasma atomic emission spectroscopy.

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Section: Optimisation Of the Acsv Parameters For The Detection Of Reosupporting

confidence: 75%

Amperometric Determination of Perrhenate Anion Using a Microscopic Interfaces Between Two Immiscible Electrolyte Solutions

et al. 2018

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“…ITSV at the ITIES is known as a powerful electroanalytical method that not only enables the trace analysis of various ions but also, in comparison to traditional redox‐based stripping voltammetry , the ions do not need to be reduced or oxidized. Stripping voltammetry at the ITIES has been used since the early 1990s , when it was demonstrated as a powerful platform for electroanalysis due to its high sensitivity, selectivity for a wide range of organic and inorganic analytes, requirement for low‐cost equipment, versatility, and portability . Moreover, stripping voltammetry is attractive for in‐situ analysis of protons of various macromolecules such as proteins, which are important in biological, biochemical, environmental, pharmaceutical, and clinical materials analysis.…”

Section: Ion‐transfer Voltammetry At Liquid/liquid Interfacesmentioning

confidence: 99%

Stripping Voltammetry at the Interface between two Immiscible Electrolyte Solutions: A Review Paper

Izadyar

2018

Electroanalysis

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Applying stripping voltammetry at interface between two immiscible electrolyte solutions (ITIES) leads to an electrochemical phenomenon that enables a very sensitive technique for detection at subnanomolar limits, which is useful for environmental, industrial, food‐safety, and medical purposes, as well as biomedical diagnostics. Studies on the molecular dynamics of the water/organic interface have provided information about the structure of this interface and the effect of molecular polarizability on interfacial properties of ITIES. The ion‐transfer stripping voltammetry (ITSV) technique was demonstrated as a powerful method due to its high sensitivity and its selectivity for a wide range of organic and inorganic analytes. This technique will lead to the industrial and miniaturized development of sensor technology for trace analysis. The purpose of this paper is to briefly review the history and most recent studies on stripping voltammetry at ITIES.

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“…Different fabrication strategies to prepare these µITIES exist and have been reviewed elsewhere. 20,22 ITIES of microscopic dimensions are now routinely used under the form of a single µITIES [43][44][45][46][47][48]37,[49][50][51] ( Figure 1D) or of an array of µITIES [52][53][54][55][56][57][58][59][60][61][62][63][64][65][66][67][68][69][70] ( Figure 1E) allowing to reach limits of detection in the range of tens of nM with an analysis time of a couple of minutes. Diffusion of ionic species at µITIES has shown an asymmetric profile.…”

Section: Sensingmentioning

confidence: 99%

“…Stripping voltammetry at the ITIES has been widely used since the early 1990s, 22 and it remains used as it is one of the most sensitive techniques for ion sensing. Since 2010, it has been used for the detection of proteins, 54,55,58,59 ionic drug molecules, 61,63,64 pollutants, 44,45,27,42 and inorganic species (both cations 47,39,41 and anions [67][68][69] ). Stripping voltammetric studies improved the limits of detection and the sensitivities by at least one order of magnitude compared to cyclic voltammetry.…”

Section: Sensingmentioning

confidence: 99%

“…31,32,86 This experimental set-up could be used for the calibration-free determination of ion Target analytes. The sensing of molecules of biological interest (small organic molecules, 52,53,28,87 carbohydrates, 88,29 and proteins 26,[54][55][56]30,[57][58][59][60] ), synthetic organic molecules (drug molecules, 61,43,[62][63][64]81,89 pollutants 44,45,27,42 ) and inorganic species (both cations 36,46,31,32,47,48,33,37,38,49,65,34,39,40,51,50,66,41 and anions 67,35,68 ) has been extensively studied in the 2010-2015 period covered in thi...…”

Section: Sensingmentioning

confidence: 99%

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Recent developments in electrochemistry at the interface between two immiscible electrolyte solutions for ion sensing

Herzog

2015

Analyst

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Ion transfer at the interface between two immiscible electrolyte solutions allows the non-redox electrochemical detection of ions ranging from protons to macromolecules such as proteins. New electrochemical methods and analytical procedures have been developed in recent years to achieve limits of detection of from μM down to tens of pM for ion sensing in biomedical diagnostics and in environmental monitoring. This article reviews the developments of the period 2010-2015.

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Voltammetric studies of hexachromic anion transfer reactions across micro-water/polyvinylchloride-2-nitrophenyloctylether gel interfaces for sensing applications

Cited by 19 publications

References 32 publications

Amperometric Determination of Perrhenate Anion Using a Microscopic Interfaces Between Two Immiscible Electrolyte Solutions

Amperometric Determination of Perrhenate Anion Using a Microscopic Interfaces Between Two Immiscible Electrolyte Solutions

Stripping Voltammetry at the Interface between two Immiscible Electrolyte Solutions: A Review Paper

Recent developments in electrochemistry at the interface between two immiscible electrolyte solutions for ion sensing

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