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Podrażka M, Maciejewska J, Adamiak W, Witkowska Nery E, Jönsson-Niedziółka M. Facilitated cation transfer at a three-phase junction and its applicability for ionophore evaluation. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.03.201] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Xie X, Bakker E. Determination of Effective Stability Constants of Ion-Carrier Complexes in Ion Selective Nanospheres with Charged Solvatochromic Dyes. Anal Chem 2015; 87:11587-91. [DOI: 10.1021/acs.analchem.5b03526] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Xiaojiang Xie
- Department of Inorganic and
Analytical Chemistry, University of Geneva, 30 Quai Ernest Ansermet, Geneva, Switzerland
| | - Eric Bakker
- Department of Inorganic and
Analytical Chemistry, University of Geneva, 30 Quai Ernest Ansermet, Geneva, Switzerland
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Benvidi A, Lanjwani SN, Ding Z. Facilitated proton transfer by 2-acetylpyridine-4-phenyl-3-thiosemicarbazone across water/1,2-dichloroethane interface. J Electroanal Chem (Lausanne) 2010. [DOI: 10.1016/j.jelechem.2009.12.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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4
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Guler Akgemci E, Bingol H, Ersoz M, Stibor I. Facilitated Transfer of Alkali Metal Ions by a Tetraester Derivative of Thiacalix[4]arene at the Liquid–Liquid Interface. ELECTROANAL 2008. [DOI: 10.1002/elan.200804189] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Nishi N, Murakami H, Imakura S, Kakiuchi T. Facilitated Transfer of Alkali-Metal Cations by Dibenzo-18-crown-6 across the Electrochemically Polarized Interface between an Aqueous Solution and a Hydrophobic Room-Temperature Ionic Liquid. Anal Chem 2006; 78:5805-12. [PMID: 16906727 DOI: 10.1021/ac060797y] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The facilitated transfer of alkali metal cations (Li+, Na+, K+, Rb+, Cs+) by dibenzo-18-crown-6 (DB18C6) across the electrochemically polarizable interface between an aqueous solution (W) and a hydrophobic ionic liquid, N-octadecylisoquinolinium tetrakis[3,5-bis(trifluoromethyl)phenyl]borate ([C18Iq][TFPB]), has been studied using cyclic voltammetry at the interface formed at the tip of a micropipet. In cyclic voltammograms (CVs), the current due to the facilitated transfer of the cations by DB18C6 from W to [C18Iq][TFPB] can be measured within the polarized potential window of the [C(18)Iq][TFPB]|W interface. The stoichiometry of the complexes in [C18Iq][TFPB] for Li+, Na+, K+, and Rb+ are found to be 1:1 while for the Cs+ transfer both 1:1 and 1:2 complexes are likely to be formed. The formation constants of the 1:1 complexes for Li+, Na+, K+, and Rb+ in [C18Iq][TFPB], , evaluated from CVs are log = 5.0, 7.0, 8.2, and 7.3, respectively. The value for K+ is 1 order of magnitude greater than that for Na+. This higher selectivity of DB18C6 to K+ over Na+ in [C18Iq][TFPB] compared with that in molecular solvents suggests that the RTIL provides a unique solvation environment for the complexations of DB18C6 with the ions.
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Affiliation(s)
- Naoya Nishi
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
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O’ Dwyer P, Cunnane VJ. Selective transfer of Ag+ at the water|1,2-dichloroethane interface facilitated by complex formation with a calixarene derivative. J Electroanal Chem (Lausanne) 2005. [DOI: 10.1016/j.jelechem.2005.03.043] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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7
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Zum Funktionsprinzip von Elektrodenmembranen mit dem Carboxyl-Ionophoren Monensin an Festkontaktsensoren. ACTA ACUST UNITED AC 2004. [DOI: 10.1007/bf00487031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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8
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Yuan Y, Shao Y. Systematic Investigation of Alkali Metal Ion Transfer Across the Micro- and Nano-Water/1,2-Dichloroethane Interfaces Facilitated by Dibenzo-18-crown-6. J Phys Chem B 2002. [DOI: 10.1021/jp015548m] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yi Yuan
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Yuanhua Shao
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
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Qian Q, Wilson GS, Bowman-James K, Girault HH. MicroITIES detection of nitrate by facilitated ion transfer. Anal Chem 2001; 73:497-503. [PMID: 11217753 DOI: 10.1021/ac000806h] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A microITIES array, created by laser photoablation of a 12-microm polyester film, was used to investigate electroassisted anion transfer between two immiscible electrolyte solutions. Besides measuring directly the transfer of nitrate to the organic phase, the enhancement of transfer of the cation (K+) by facilitated anion (counterion) transfer was measured as well. In the presence of a triamide derived from tris(2-aminoethyl)amine (tren), which is known to function as a host for nitrate, the current responses for both nitrate and potassium transfer were monitored. The linear relationships between the current responses and nitrate concentration formed the basis of an anion sensor with a dynamic range from 0.1 to 5 mM. A dual facilitated transfer mechanism is proposed to explain the enhancement phenomenon.
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Affiliation(s)
- Q Qian
- Department of Chemistry, University of Kansas, Lawrence 66045, USA
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Mi Y, Bakker E. Determination of complex formation constants of lipophilic neutral ionophores in solvent polymeric membranes with segmented sandwich membranes. Anal Chem 1999; 71:5279-87. [PMID: 10596210 DOI: 10.1021/ac9905930] [Citation(s) in RCA: 158] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A potentiometric method to determine ionophore complex formation constants in solvent polymeric membrane phases, proposed originally by Russian researchers, is critically evaluated and compared to other established methods. It requires membrane potential measurements on two-layer sandwich membranes, where only one side contains the ionophore. The resulting initial membrane potential reflects the ion activity ratio at both aqueous phase--membrane interfaces and can be conveniently used to calculate complex formation constants in situ. This method is potentially useful, since it does not require the use of a reference ion or second ionophore in the measurement. In this paper, the five ionophores valinomycin, BME-44, ETH 2120, tert-butylcalix[4]arene tetraethyl ester, and S,S'-methylenebis(diisobutyldithiocarbamate) are characterized in poly(vinyl chloride) (PVC) plasticized with dioctyl sebacate (DOS) and compared with other established methods. The resulting formation constants correspond well to literature values. The influence of varying membrane concentrations and different anionic site additives is studied and found to be relatively small. Experiments are also performed with and without lipophilic inert electrolytes and with ionophore-free sandwich membranes to illustrate the effect of ion pairing and the membrane internal diffusion potential on the response of such sandwich membranes. These experiments suggest that ions are completely associated in PVC-DOS membranes, but that such ion pairs are rather nonspecific. Diffusion potentials seem to play a minor role with these systems. The results are explained with theory. This work indicates that the characterization of electrically charged ionophores, anion-selective ionophores, and ionophores in membrane matrixes other than PVC plasticized with DOS may now be experimentally accessible.
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Affiliation(s)
- Y Mi
- Department of Chemistry, Auburn University, Alabama 36849, USA
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Jadhav S, Bakker E. Voltammetric and amperometric transduction for solvent polymeric membrane ion sensors. Anal Chem 1999; 71:3657-64. [PMID: 10489520 DOI: 10.1021/ac990195x] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This paper describes basic response features of solvent polymeric membrane ion sensors with voltammetric and amperometric transduction. The model systems used here contain no ionophore for simplicity reasons. Reasonable simplifications of the theory are introduced that allow one to understand the response mechanism in view of a practical application of these sensors. It is shown that ion-sensing membranes preferentially contain no ion-exchanger properties in order to function optimally in a voltammetric mode. As with the systems studied by Kihara, both liquid-polymer interfaces of the membrane are preferably polarizable. Specifically, they contain the highly lipophilic electrolyte tetradodecylammonium tetrakis(4-chlorophenyl)borate (ETH 500) in the membrane to improve lifetime, increase the magnitude of the potential window, and prohibit exchange reactions with sample ions. An ohmic behavior that is associated with an assisted electrolyte-transfer process is observed only above a threshold potential which can be quantitatively predicted by theory. The threshold potential depends on the nature and activity of sample anions and cations in the sample and inner filling solution of the membrane electrode. Within the experimental conditions discussed in this paper, these sensors seem to measure sample ion activities, not concentrations, since the rate-limiting step is the diffusion of extracted ions away from the interface into the membrane bulk. Similarly, no effect of sample stirring on the measured current is observed. This contrasts to work done on liquid-liquid electrolyte-transfer reactions, where large diffusion coefficients in the organic phase often lead to substantial sample depletion effects. The detection of anions and cations with the same membrane is demonstrated in a cyclic voltammetric mode. Direct continuous detection of one type of anion is accomplished by pulsed amperometry to ensure a rapid, repetitive renewal of the membrane composition between measurements.
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Affiliation(s)
- S Jadhav
- Department of Chemistry, Aubuur University, Alabama 36849, USA
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Spectroelectrochemical study of the copper(II) transfer assisted by 6,7-dimethyl-2,3-di(2-pyridyl)quinoxaline at the water|1,2-dichloroethane interface. J Electroanal Chem (Lausanne) 1998. [DOI: 10.1016/s0022-0728(98)00183-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Cyclic voltammetry for the transfer of multiple charged ions at large ITIES: general computational methodology and application to simple and facilitated ion transfer reactions. J Electroanal Chem (Lausanne) 1997. [DOI: 10.1016/s0022-0728(96)04933-9] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Reymond F, Steyaert G, Pagliara A, Carrupt PA, Testa B, Girault H. Transfer Mechanism of Ionic Drugs: Piroxicam as an agent facilitating proton transfer. Helv Chim Acta 1996. [DOI: 10.1002/hlca.19960790616] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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16
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Amperometric detection of the ammonium ion by facilitated ion transfer across the interface between two immiscible electrolyte solutions. ELECTROANAL 1995. [DOI: 10.1002/elan.1140070505] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Successive complex formation of multivalent ions with octaethylene glycol dodecyl ether at the nitrobenzene/water interface. J Electroanal Chem (Lausanne) 1993. [DOI: 10.1016/0022-0728(93)80479-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Current-potential curves for facilitated ion transfer across oil/water interfaces in the presence of successive complex formation. ACTA ACUST UNITED AC 1991. [DOI: 10.1016/0022-0728(91)85409-i] [Citation(s) in RCA: 68] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Koryta J, Mareček V. Electrolysis at the interface of two immiscible electrolyte solutions: Determination of ionophores. Mikrochim Acta 1990. [DOI: 10.1007/bf01244845] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Zhicheng P, Erkang W. Study of the ion transfer of iodine and its complexes across the water/nitrobenzene interface. ACTA ACUST UNITED AC 1988. [DOI: 10.1016/0022-0728(88)80214-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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22
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Koryta J. Electrochemical polarization phenomena at the interface of two immiscible electrolyte solutions—III. Progress since 1983. Electrochim Acta 1988. [DOI: 10.1016/0013-4686(88)80002-1] [Citation(s) in RCA: 81] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Voltammetric study of ion transfer across the water/o-nitrophenyloctyl ether interface. ACTA ACUST UNITED AC 1987. [DOI: 10.1016/0022-0728(87)80031-1] [Citation(s) in RCA: 34] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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