Durable phosphate-selective electrodes based on uranyl salophenes

Wojciech Wroblewski; Kamil Wojciechowski; Artur Dybko; Zbigniew Brzozka; Richard J.M. Egberink; Bianca H.M. Ruel; David Reinhoudt

doi:10.1016/S0003-2670(00)01358-1

Durable phosphate-selective electrodes based on uranyl salophenes

Wojciech Wroblewski, Kamil Wojciechowski, Artur Dybko, Zbigniew Brzozka, Richard J.M. Egberink, Bianca H.M. Ruel, David Reinhoudt

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Abstract

Lipophilic uranyl salophenes derivatives were used as ionophores in durable phosphate-selective electrodes. The influence of the ionophore structure and membrane composition (polarity of plasticizer, the amount of incorporated ionic sites) on the electrode selectivity and long-term stability were studied. The highest selectivity for H2PO4− over other anions tested was obtained for lipophilic uranyl salophene III (with t-butyl substituents) in poly(vinylchloride)/o-nitrophenyl octyl ether (PVC/o-NPOE) membrane containing 20 mol% of tetradecylammonium bromide (TDAB). Moreover, phosphate-selective electrodes based on this derivative exhibited the best long-term stability (2 months). The electrode durability can be improved decreasing the amount of the ammonium salt in membrane to 5 mol%.

Original language	Undefined
Pages (from-to)	79-88
Journal	Analytica chimica acta
Volume	432
Issue number	1
DOIs	https://doi.org/10.1016/S0003-2670(00)01358-1
Publication status	Published - 2001

Keywords

IR-36700
METIS-202828

Access to Document

10.1016/S0003-2670(00)01358-1

Cite this

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title = "Durable phosphate-selective electrodes based on uranyl salophenes",

abstract = "Lipophilic uranyl salophenes derivatives were used as ionophores in durable phosphate-selective electrodes. The influence of the ionophore structure and membrane composition (polarity of plasticizer, the amount of incorporated ionic sites) on the electrode selectivity and long-term stability were studied. The highest selectivity for H2PO4− over other anions tested was obtained for lipophilic uranyl salophene III (with t-butyl substituents) in poly(vinylchloride)/o-nitrophenyl octyl ether (PVC/o-NPOE) membrane containing 20 mol% of tetradecylammonium bromide (TDAB). Moreover, phosphate-selective electrodes based on this derivative exhibited the best long-term stability (2 months). The electrode durability can be improved decreasing the amount of the ammonium salt in membrane to 5 mol%.",

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TY - JOUR

T1 - Durable phosphate-selective electrodes based on uranyl salophenes

AU - Wroblewski, Wojciech

AU - Wojciechowski, Kamil

AU - Dybko, Artur

AU - Brzozka, Zbigniew

AU - Egberink, Richard J.M.

AU - Ruel, Bianca H.M.

AU - Reinhoudt, David

N1 - 642

PY - 2001

Y1 - 2001

N2 - Lipophilic uranyl salophenes derivatives were used as ionophores in durable phosphate-selective electrodes. The influence of the ionophore structure and membrane composition (polarity of plasticizer, the amount of incorporated ionic sites) on the electrode selectivity and long-term stability were studied. The highest selectivity for H2PO4− over other anions tested was obtained for lipophilic uranyl salophene III (with t-butyl substituents) in poly(vinylchloride)/o-nitrophenyl octyl ether (PVC/o-NPOE) membrane containing 20 mol% of tetradecylammonium bromide (TDAB). Moreover, phosphate-selective electrodes based on this derivative exhibited the best long-term stability (2 months). The electrode durability can be improved decreasing the amount of the ammonium salt in membrane to 5 mol%.

AB - Lipophilic uranyl salophenes derivatives were used as ionophores in durable phosphate-selective electrodes. The influence of the ionophore structure and membrane composition (polarity of plasticizer, the amount of incorporated ionic sites) on the electrode selectivity and long-term stability were studied. The highest selectivity for H2PO4− over other anions tested was obtained for lipophilic uranyl salophene III (with t-butyl substituents) in poly(vinylchloride)/o-nitrophenyl octyl ether (PVC/o-NPOE) membrane containing 20 mol% of tetradecylammonium bromide (TDAB). Moreover, phosphate-selective electrodes based on this derivative exhibited the best long-term stability (2 months). The electrode durability can be improved decreasing the amount of the ammonium salt in membrane to 5 mol%.

KW - IR-36700

KW - METIS-202828

U2 - 10.1016/S0003-2670(00)01358-1

DO - 10.1016/S0003-2670(00)01358-1

M3 - Article

SN - 0003-2670

VL - 432

SP - 79

EP - 88

JO - Analytica chimica acta

JF - Analytica chimica acta

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ER -