Membrane characterization of anion-selective CHEMFETs by impedance spectroscopy

M.M.G. Antonisse, Bianca H.M. Ruel, R.J.W. Lugtenberg, Johannes F.J. Engbersen, David Reinhoudt

Research output: Contribution to journalArticleAcademicpeer-review

29 Citations (Scopus)

Abstract

Impedance spectroscopy can be used to determine the influence of several membrane parameters on the membrane resistance of anion selective CHEMFETs. The concentration of the ammonium sites in the membrane, the anion-receptor complex stoichiometry, and the polarity of the membrane matrix are of particular importance. In general the resistance of polysiloxane membranes is higher than that of PVC membranes. However, in polysiloxane membranes the membrane polarity can be influenced by the type or concentration of polar substituents on the polysiloxane chain. Polysiloxane ion-exchange membranes with 25 mol % of polar sulfone substituents exhibit the same conductance as NPOE plasticized PVC membranes. Remarkably, the membrane resistance of cation-selective polysiloxane membranes is much lower and is much less dependent on the substituents.
Original languageUndefined
Pages (from-to)343-348
JournalAnalytical chemistry
Volume72
Issue number2
DOIs
Publication statusPublished - 2000

Keywords

  • METIS-106267
  • IR-11647

Cite this

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title = "Membrane characterization of anion-selective CHEMFETs by impedance spectroscopy",
abstract = "Impedance spectroscopy can be used to determine the influence of several membrane parameters on the membrane resistance of anion selective CHEMFETs. The concentration of the ammonium sites in the membrane, the anion-receptor complex stoichiometry, and the polarity of the membrane matrix are of particular importance. In general the resistance of polysiloxane membranes is higher than that of PVC membranes. However, in polysiloxane membranes the membrane polarity can be influenced by the type or concentration of polar substituents on the polysiloxane chain. Polysiloxane ion-exchange membranes with 25 mol {\%} of polar sulfone substituents exhibit the same conductance as NPOE plasticized PVC membranes. Remarkably, the membrane resistance of cation-selective polysiloxane membranes is much lower and is much less dependent on the substituents.",
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year = "2000",
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journal = "Analytical chemistry",
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Membrane characterization of anion-selective CHEMFETs by impedance spectroscopy. / Antonisse, M.M.G.; Ruel, Bianca H.M.; Lugtenberg, R.J.W.; Engbersen, Johannes F.J.; Reinhoudt, David.

In: Analytical chemistry, Vol. 72, No. 2, 2000, p. 343-348.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Membrane characterization of anion-selective CHEMFETs by impedance spectroscopy

AU - Antonisse, M.M.G.

AU - Ruel, Bianca H.M.

AU - Lugtenberg, R.J.W.

AU - Engbersen, Johannes F.J.

AU - Reinhoudt, David

PY - 2000

Y1 - 2000

N2 - Impedance spectroscopy can be used to determine the influence of several membrane parameters on the membrane resistance of anion selective CHEMFETs. The concentration of the ammonium sites in the membrane, the anion-receptor complex stoichiometry, and the polarity of the membrane matrix are of particular importance. In general the resistance of polysiloxane membranes is higher than that of PVC membranes. However, in polysiloxane membranes the membrane polarity can be influenced by the type or concentration of polar substituents on the polysiloxane chain. Polysiloxane ion-exchange membranes with 25 mol % of polar sulfone substituents exhibit the same conductance as NPOE plasticized PVC membranes. Remarkably, the membrane resistance of cation-selective polysiloxane membranes is much lower and is much less dependent on the substituents.

AB - Impedance spectroscopy can be used to determine the influence of several membrane parameters on the membrane resistance of anion selective CHEMFETs. The concentration of the ammonium sites in the membrane, the anion-receptor complex stoichiometry, and the polarity of the membrane matrix are of particular importance. In general the resistance of polysiloxane membranes is higher than that of PVC membranes. However, in polysiloxane membranes the membrane polarity can be influenced by the type or concentration of polar substituents on the polysiloxane chain. Polysiloxane ion-exchange membranes with 25 mol % of polar sulfone substituents exhibit the same conductance as NPOE plasticized PVC membranes. Remarkably, the membrane resistance of cation-selective polysiloxane membranes is much lower and is much less dependent on the substituents.

KW - METIS-106267

KW - IR-11647

U2 - 10.1021/ac990721k

DO - 10.1021/ac990721k

M3 - Article

VL - 72

SP - 343

EP - 348

JO - Analytical chemistry

JF - Analytical chemistry

SN - 0003-2700

IS - 2

ER -