Paradox of the Variation of the Bulk Resistance of Potassium Ion-Selective Electrode Membranes within Nernstian Potentiometric Response Range

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Paradox of the Variation of the Bulk Resistance of Potassium Ion-Selective Electrode Membranes within Nernstian Potentiometric Response Range. / Kondratyeva, Ye O.; Solovyeva, E. V.; Khripoun, G. A.; Mikhelson, K. N.

в: Russian Journal of Electrochemistry, Том 55, № 11, 01.11.2019, стр. 1118-1126.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

BibTeX

@article{cb7d6cbb4a6a4baea39903b6ccaa7df9,

title = "Paradox of the Variation of the Bulk Resistance of Potassium Ion-Selective Electrode Membranes within Nernstian Potentiometric Response Range",

abstract = "Abstract: Bulk resistance and other electrochemical properties of membranes of K+-selective electrodes (ISEs) containing valinomycin are measured by means of chronopotentiometry and electrochemical impedance. It is shown that the bulk resistance of the membranes, within the Nernstian potentiometric response range, increases along decrease of KCl concentration in solution. Analogous results were reported earlier for Ca2+ and NO$$_{3}^{ - }$$ ISEs. This non-constancy of the bulk resistance is in conflict with current views on the mechanism of ISEs response. Tentatively, this paradox is ascribed to heterogeneity of membranes due to water uptake from solution.",

keywords = "chronopotentiometry, electrochemical impedance, ion-selective electrodes, membrane bulk resistance, potassium, valinomycin",

author = "Kondratyeva, {Ye O.} and Solovyeva, {E. V.} and Khripoun, {G. A.} and Mikhelson, {K. N.}",

year = "2019",

month = nov,

day = "1",

doi = "10.1134/S1023193519110090",

language = "English",

volume = "55",

pages = "1118--1126",

journal = "Russian Journal of Electrochemistry",

issn = "1023-1935",

publisher = "МАИК {"}Наука/Интерпериодика{"}",

number = "11",

}

RIS

TY - JOUR

T1 - Paradox of the Variation of the Bulk Resistance of Potassium Ion-Selective Electrode Membranes within Nernstian Potentiometric Response Range

AU - Kondratyeva, Ye O.

AU - Solovyeva, E. V.

AU - Khripoun, G. A.

AU - Mikhelson, K. N.

PY - 2019/11/1

Y1 - 2019/11/1

N2 - Abstract: Bulk resistance and other electrochemical properties of membranes of K+-selective electrodes (ISEs) containing valinomycin are measured by means of chronopotentiometry and electrochemical impedance. It is shown that the bulk resistance of the membranes, within the Nernstian potentiometric response range, increases along decrease of KCl concentration in solution. Analogous results were reported earlier for Ca2+ and NO$$_{3}^{ - }$$ ISEs. This non-constancy of the bulk resistance is in conflict with current views on the mechanism of ISEs response. Tentatively, this paradox is ascribed to heterogeneity of membranes due to water uptake from solution.

AB - Abstract: Bulk resistance and other electrochemical properties of membranes of K+-selective electrodes (ISEs) containing valinomycin are measured by means of chronopotentiometry and electrochemical impedance. It is shown that the bulk resistance of the membranes, within the Nernstian potentiometric response range, increases along decrease of KCl concentration in solution. Analogous results were reported earlier for Ca2+ and NO$$_{3}^{ - }$$ ISEs. This non-constancy of the bulk resistance is in conflict with current views on the mechanism of ISEs response. Tentatively, this paradox is ascribed to heterogeneity of membranes due to water uptake from solution.

KW - chronopotentiometry

KW - electrochemical impedance

KW - ion-selective electrodes

KW - membrane bulk resistance

KW - potassium

KW - valinomycin

UR - http://www.scopus.com/inward/record.url?scp=85076433449&partnerID=8YFLogxK

U2 - 10.1134/S1023193519110090

DO - 10.1134/S1023193519110090

M3 - Article

AN - SCOPUS:85076433449

VL - 55

SP - 1118

EP - 1126

JO - Russian Journal of Electrochemistry

JF - Russian Journal of Electrochemistry

SN - 1023-1935

IS - 11

ER -

ID: 48928969