Polysulfone as an alternative material to PVC in the design of ion-selective electrodes

Anna González-Bellavista; Jorge Macanás; Maria Muñoz; Esteve Fàbregas

doi:10.1016/j.snb.2005.10.040

Polysulfone as an alternative material to PVC in the design of ion-selective electrodes

Anna González-Bellavista, Jorge Macanás, Maria Muñoz, Esteve Fàbregas

Department of Chemistry

Research output: Contribution to journal › Article › Research › peer-review

14 Citations (Scopus)

Abstract

Polysulfone (PS), a non-conductive polymer, is employed as an alternative material to polyvinyl chloride (PVC), the most used polymer in the design of ion-selective electrode (ISE) membranes to date. A nitrate-ISE is chosen as a model electrode to study the efficiency of PS as a polymer matrix of the membrane. Tetra-octyl ammonium nitrate is used as ionophore and 2-nitrophenyl octyl ether as plasticizer. The polymer/plasticizer/ionophore ratio is optimized and the analytical performance parameters of the prepared electrodes are evaluated. The electrodes show a slope between 45 and 60 mV/decade (depending on the calibration medium and membrane composition). A linear range response between 1.0 × 10-4 and 3.0 × 10-2 M, and a lifetime of at least 1 month are obtained. The electrodes exhibit good selectivity for nitrate in respect to other anions. © 2005 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	691-696
Journal	Sensors and Actuators, B: Chemical
Volume	115
Issue number	2
DOIs	https://doi.org/10.1016/j.snb.2005.10.040
Publication status	Published - 26 Jun 2006

Keywords

Ion-selective electrode
Nitrate
Polysulfone membrane

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title = "Polysulfone as an alternative material to PVC in the design of ion-selective electrodes",

abstract = "Polysulfone (PS), a non-conductive polymer, is employed as an alternative material to polyvinyl chloride (PVC), the most used polymer in the design of ion-selective electrode (ISE) membranes to date. A nitrate-ISE is chosen as a model electrode to study the efficiency of PS as a polymer matrix of the membrane. Tetra-octyl ammonium nitrate is used as ionophore and 2-nitrophenyl octyl ether as plasticizer. The polymer/plasticizer/ionophore ratio is optimized and the analytical performance parameters of the prepared electrodes are evaluated. The electrodes show a slope between 45 and 60 mV/decade (depending on the calibration medium and membrane composition). A linear range response between 1.0 × 10-4 and 3.0 × 10-2 M, and a lifetime of at least 1 month are obtained. The electrodes exhibit good selectivity for nitrate in respect to other anions. {\textcopyright} 2005 Elsevier B.V. All rights reserved.",

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T1 - Polysulfone as an alternative material to PVC in the design of ion-selective electrodes

AU - González-Bellavista, Anna

AU - Macanás, Jorge

AU - Muñoz, Maria

AU - Fàbregas, Esteve

PY - 2006/6/26

Y1 - 2006/6/26

N2 - Polysulfone (PS), a non-conductive polymer, is employed as an alternative material to polyvinyl chloride (PVC), the most used polymer in the design of ion-selective electrode (ISE) membranes to date. A nitrate-ISE is chosen as a model electrode to study the efficiency of PS as a polymer matrix of the membrane. Tetra-octyl ammonium nitrate is used as ionophore and 2-nitrophenyl octyl ether as plasticizer. The polymer/plasticizer/ionophore ratio is optimized and the analytical performance parameters of the prepared electrodes are evaluated. The electrodes show a slope between 45 and 60 mV/decade (depending on the calibration medium and membrane composition). A linear range response between 1.0 × 10-4 and 3.0 × 10-2 M, and a lifetime of at least 1 month are obtained. The electrodes exhibit good selectivity for nitrate in respect to other anions. © 2005 Elsevier B.V. All rights reserved.

AB - Polysulfone (PS), a non-conductive polymer, is employed as an alternative material to polyvinyl chloride (PVC), the most used polymer in the design of ion-selective electrode (ISE) membranes to date. A nitrate-ISE is chosen as a model electrode to study the efficiency of PS as a polymer matrix of the membrane. Tetra-octyl ammonium nitrate is used as ionophore and 2-nitrophenyl octyl ether as plasticizer. The polymer/plasticizer/ionophore ratio is optimized and the analytical performance parameters of the prepared electrodes are evaluated. The electrodes show a slope between 45 and 60 mV/decade (depending on the calibration medium and membrane composition). A linear range response between 1.0 × 10-4 and 3.0 × 10-2 M, and a lifetime of at least 1 month are obtained. The electrodes exhibit good selectivity for nitrate in respect to other anions. © 2005 Elsevier B.V. All rights reserved.

KW - Ion-selective electrode

KW - Nitrate

KW - Polysulfone membrane

U2 - 10.1016/j.snb.2005.10.040

DO - 10.1016/j.snb.2005.10.040

M3 - Article

VL - 115

SP - 691

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ER -