Ion-selective charge separation at the phase boundary of ionophore-incorporated liquid membranes as studied by optical second-harmonic generation

Tohda, Koji; Yoshiyagawa, Shinji; Umezawa, Yoshio

doi:10.1016/s0022-2860(96)09624-x

Cited by 6 publications

(5 citation statements)

References 7 publications

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“…32,33 The polymeric liquid membrane (∼130 µm thickness) containing a polyether-type ionophore was prepared. Then, one surface of this membrane was put in contact with an aqueous solution containing a cation, and the SH signal was detected by transmission geometry, as schematically shown in Fig.…”

Section: ·1 Complexation At the Interfacementioning

confidence: 99%

Recent Progress in Analytical SHG Spectroscopy

Yamada

Lee

1998

ANAL. SCI.

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The progress of laser technology has brought extensive applications of nonlinear optical (NLO) spectroscopy to analytical fields. Especially, optical second harmonic generation (SHG), which is one of the most popular NLO phenomena, has been successfully applied to the study of interfaces (surfaces). Several fine reviews on surface SHG spectroscopies have appeared recently. The present article will concentrate on some new applications of SHG: second harmonic microscopy (SHM) for microstructural characterization, SHG interferometry for the determination of absolute molecular orientation, surface analysis of microstructures, and some molecular interactions at the interfaces.

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Section: ·1 Complexation At the Interfacementioning

confidence: 99%

Recent Progress in Analytical SHG Spectroscopy

Yamada

Lee

1998

ANAL. SCI.

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“…Tohda et al 18 applied the Second Harmonic Generation (SHG)-technique for membranes without an ionophore, but in the absence of the primary ion. They tried a PVC-membrane with DOS as a plasticizer.…”

Section: Electrode Properties and Membrane Compositionmentioning

confidence: 99%

Blank Membranes versus Ionophore-based Membranes for the Selective Determination of H+

Zаrеh

2009

ANAL. SCI.

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A pH electrode for the selective determination of H + was introduced. Both phosphorated calix [6]arene and a N,N′-bisethoxycarbonyl-1,10-diaza-4,7,13,16-tetraoxacyclo-octadecane (DZCE) were used as new H + -ionophores. The calibration graphs of the obtained electrodes exhibits satisfactory Nernstian slopes. The electrodes were compared to blank membranes (without any ionophoric substances) for the first time. Selectivity coefficients of the studied electrodes towards several inorganic cations were calculated. The relative selectivity coefficient (RSC) was applied for evaluating the selectivity properties of H + -electrode using a mathematical equation. The electrodes were applied for the determination of different inorganic and organic acids.

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“…Properties of the whole membrane matrix such as impedance, membrane resistance, dielectric constant, ionic conductivity, chronoamperometric and chronopotentiometric method, and second-harmonic generation (SHG) have been well documented. [6][7][8][9][10][11][12][13][14] Microscopic analyses with Fourier transform infrared spectroscopy using the attenuated total reflectance (FTIR-ATR) technique, 15,16 atomic force microscopy (AFM), 17 scanning electron microscopy (SEM), 18 and scanning electrochemical microscopy (SECM) 19 and surface analyses with spatial imaging photometer (SIP), 20 X-ray photoelectron spectroscopy (XPS), 18,21 and hyperspectral imaging 22 have also been utilized to elucidate the properties of the whole membrane matrix. Some attempts to elucidate the behaviors of the components included in the potentiometric liquid membranes have been made by the high resolution 13 C NMR or 1 H NMR analyses in solutions.…”

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confidence: 99%

Pulsed NMR analysis of ion-selective electrode membranes

Moriuchi‐Kawakami

Kizuki

Takeuchi

et al. 2011

Analyst

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A novel method for evaluation of ion-selective electrode membranes was reported with the proton spin-spin relaxation time T(2) by pulsed NMR. The proton spin-spin relaxation time T(2) measurements provided valuable information about properties of the whole membrane matrix. The softer potentiometric liquid membrane possessed a large fraction F(L) providing relatively longer T(2) value. Pulsed NMR method can quantify the degree of the plasticization of ion-selective electrode membranes.

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Ion-selective charge separation at the phase boundary of ionophore-incorporated liquid membranes as studied by optical second-harmonic generation

Cited by 6 publications

References 7 publications

Recent Progress in Analytical SHG Spectroscopy

Recent Progress in Analytical SHG Spectroscopy

Blank Membranes versus Ionophore-based Membranes for the Selective Determination of H+

Pulsed NMR analysis of ion-selective electrode membranes

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