A review of recent advances in electrochemically modulated extraction methods

Collins, Courtney J.; Arrigan, Damien W. M.

doi:10.1007/s00216-008-2357-5

Cited by 41 publications

(19 citation statements)

References 72 publications

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“…(65) Flow cells have shown potential in many practical applications in the fields of electroanalysis (25) and liquid-liquid extraction of metals and drugs. (66 -69) The recent advances in electrochemically modulated extraction have been reviewed by Arrigan et al (70) and…”

Section: Hydrodynamic Methodsmentioning

confidence: 99%

Liquid/Liquid Interfaces, Electrochemistry atUpdate based on the original article by Frédéric Reymond, Hubert H. Girault,Encyclopedia of Analytical Chemistry, © 2000, John Wiley & Sons, Ltd

Peljo

Girault

2012

Encyclopedia of Analytical Chemistry

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This article outlines the electrochemical methodology at the interface between two immiscible electrolyte solutions (ITIES). The fundamental concepts of the thermodynamics in biphasic systems are presented in order to show how ions are distributed between the two adjacent phases and hence, how a Galvani potential difference is established at an ITIES. Polarizable and nonpolarizable ITIES are then characterized, and it is further evidenced that the classical electroanalytical methodology at a solid electrode can be directly transposed to the ITIES, thereby allowing reversible charge‐transfer reactions to be easily monitored and interpreted. This theoretical approach is completed by a review of the analytical methods used at ITIES, namely cyclic voltammetry (CV), hydrodynamic methods, spectroscopic techniques, and micro‐ and nanointerfaces (which are the biphasic analogs of micro‐ and nanoelectrodes). The last part deals with the practical applications that electrochemistry at ITIES has attracted during the past decades in the development of amperometric and coulometric ion sensors and detectors, detection of macromolecules, extraction of metal ions by interfacial formation of a complex, and assessment of the properties and lipophilicity of ionizable drugs.

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Section: Hydrodynamic Methodsmentioning

confidence: 99%

Liquid/Liquid Interfaces, Electrochemistry atUpdate based on the original article by Frédéric Reymond, Hubert H. Girault,Encyclopedia of Analytical Chemistry, © 2000, John Wiley & Sons, Ltd

Peljo

Girault

2012

Encyclopedia of Analytical Chemistry

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“…SPME has been used for the preconcentration and cleanup of numerous different classes of compounds in a variety of matrices. [1][2][3][4][5][6][7] It has advantages of simplicity, low cost, ease of use and rapid preconcentration and extraction of analytes that exist in low concentrations. The method successfully combines sample cleanup and preconcentration into one step.…”

mentioning

confidence: 99%

Dye-doped Nanostructure Polypyrrole Film for Electrochemically Switching Solid-phase Microextraction of Ni(II) and ICP-OES Analysis of Waste Water

Shamaeli

Alizadeh

2012

ANAL. SCI.

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A nanostructure fiber based on conducting polypyrrole synthesized by an electrochemical method has been developed, and used for electrochemically switching solid-phase microextraction (ES-SPME). The ES-SPME was prepared by the doping of eriochrome blue in polypyrrole (PPy-ECB) and used for selectively extracting the Ni(II) cation in the presence of some transition and heavy metal ions. The cation-exchange behavior of electrochemically prepared polypyrrole on stainless-steel with and without eriochrome blue (ECB) dye was characterized using ICP-OES analysis. The effects of the scan rate for electrochemical synthesis, uptake and the release potential on the extraction behavior of the PPy-ECB conductive fiber were studied. Uptake and release time profiles show that the process of electrically switched cation exchange could be completed within 250 s. The results of the present study point concerning the possibility of developing a selective extraction process for Ni(II) from waste water was explored using such a nanostructured PPy-ECB film through an electrically switched cation exchange.

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“…A set of four electrodes (two platinum counter electrodes -one in each block and a reference Ag/AgCl (Ag/Ag 2 SO 4 ) electrode for aqueous phase and a pseudoreference Ag/AgCl (Ag/ Ag 2 SO 4 ) electrode for organo-gel phase) was inserted into the extraction cell. The principle of the extraction technique can be described by the following equation [28]:…”

Section: Electrochemically Modulated Llementioning

confidence: 99%

“…A recent review is also available [27], which comprehensively summarizes the latest achievements in the field of EME and related extraction techniques combined with analytical separation methods. A review of electrochemically modulated extraction methods describing EME, EE and ITIES extractions has appeared in early 2009 [28]. Applications of electrochemically modulated LC and electrochemical solid phase extraction/microextraction are also included in this review, and the potential of electrically driven migration at a solidÀliquid interface is also summarized.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Electric field‐enhanced transport across phase boundaries and membranes and its potential use in sample pretreatment for bioanalysis

2010

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Separation techniques, such as electrodialysis, electroextraction, electro-membrane extraction and extraction across phase interfaces, are reviewed and discussed as methods for sample cleanup and preconcentration. This survey clearly shows that electromigration of ionic species across phase interfaces, especially across supported liquid membranes, may be very selective and is strongly dependent on the chemical composition of these interfaces. Thus, electric field-enhanced transport across chemically tailored liquid membranes may open new perspectives in preparative analytical chemistry. This review offers comprehensive survey of related literature and discussion of the topic, which may stimulate interest of experts and practitioners in bioanalysis.

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A review of recent advances in electrochemically modulated extraction methods

Cited by 41 publications

References 72 publications

Liquid/Liquid Interfaces, Electrochemistry atUpdate based on the original article by Frédéric Reymond, Hubert H. Girault,Encyclopedia of Analytical Chemistry, © 2000, John Wiley & Sons, Ltd

Liquid/Liquid Interfaces, Electrochemistry atUpdate based on the original article by Frédéric Reymond, Hubert H. Girault,Encyclopedia of Analytical Chemistry, © 2000, John Wiley & Sons, Ltd

Dye-doped Nanostructure Polypyrrole Film for Electrochemically Switching Solid-phase Microextraction of Ni(II) and ICP-OES Analysis of Waste Water

Electric field‐enhanced transport across phase boundaries and membranes and its potential use in sample pretreatment for bioanalysis

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