All-solid-state miniaturised planar reference electrodes based on ionic liquids

Mamińska, Renata; Dybko, Artur; Wróblewski, Wojciech

doi:10.1016/j.snb.2005.10.018

Cited by 86 publications

(64 citation statements)

References 22 publications

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“…Although the fabrication of all-solid-state sensor, which do not require any internal filling solutions, is one way to achieve durable sensors, the design of a proper solid contact between the ionselective membrane and the electronic conductor is a difficult challenge in the way of obtaining reliable all solid-state electrodes. Application of ILs in construction of all-solid-state sensor has recently been reported by Maminska et al (Maminska et al, 2006). They used 1-dodecyl-3-methylimidazolium chloride [DMIM][Cl] in PVC membranes.…”

Section: All Solid State Sensorsmentioning

confidence: 99%

Application of Room Temperature Ionic Liquids in Electrochemical Sensors and Biosensors

Faridbod¹,

Ganjali²,

Norouzi³

et al. 2011

Ionic Liquids: Applications and Perspectives

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Section: All Solid State Sensorsmentioning

confidence: 99%

Application of Room Temperature Ionic Liquids in Electrochemical Sensors and Biosensors

Faridbod¹,

Ganjali²,

Norouzi³

et al. 2011

Ionic Liquids: Applications and Perspectives

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“…The first is to apply dedicated functionalized layers of conducting polymers which result in a stable electrical potential independent of ionic and redox influences [10] and/or ionic mobilities in the layers [7,15,21,22]. The second approach is to disperse ionic liquids [16,17] or quaternary ammonium borates [11 -13] in PVC or acryl membranes.…”

Section: Introductionmentioning

confidence: 99%

Solid‐Contact Reference Electrodes Based on Lipophilic Salts

2009

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A novel solid-contact reference electrode (SCRE) for potentiometric measurements is studied. A lipophilic salt was introduced into a PVC membrane by two different approaches, i) using tetra(alkyl)ammonium-tetra(butyl or phenyl) borate, i.e. a single salt (F þ Y À ), and ii) tetra(alkyl)ammonium chloride þ potassium tetra(phenyl)borate i.e. two saltsand potassium chloride (KCl) in the membrane. The effect of the salt size on the performance of the SCRE was studied by preparing membranes using compounds with varying alkyl chain lengths. To get reference electrodes, these membranes were drop cast on two different substrates: glassy carbon (GC) disks covered with the conductive polymer (poly(3,4-ethylenedioxythiophene) doped with chloride (PEDOT-Cl), or silver disks coated with silver chloride (Ag/AgCl). The potential response of these electrodes was investigated in several potentiometric experiments using a conventional double junction silver chloride electrode as a reference. It was found that electrodes with the tetrabutylammonium tetrabutylborate (TBA-TBB, single salt) in the membrane were insensitive to changes in electrolyte concentrations but reached stable potentials slowly after changes in the sample electrolyte. The double salt approach, where KCl was also present in the membrane, improved the response time, but these electrodes were more sensitive to concentration changes.

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“…Figure 1a shows the electrical behaviour of the quasi-reference electrodes against a conven- Although quasi-reference electrodes have been employed in strips to measure glucose based on amperometric measurements (Matsumoto et al, 2002;Mamińska et al, 2006), these electrodes are not suited for use in potentiometric cells. The stability of the potential of a potentiometric cell must be independent of the concentration of chloride ions in the sample solution.…”

Section: Resultsmentioning

confidence: 99%

Alternative strategy for manufacturing of all-solid-state reference electrodes for potentiometry

Fernandes

Heinke

2015

J. Sens. Sens. Syst.

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Abstract. This paper presents an alternative strategy for manufacturing solid-state reference electrodes based on particles of graphite/silver/silver chloride synthesized by electroless deposition of metallic silver and silver chloride on graphite powder. Two kinds of reference electrodes were manufactured by mixing these particles with epoxy resin and hardener: quasi-reference and all-solid-state containing salts of alkaline or alkaline earth metals. All-solid-state reference electrodes can be sterilized with high-pressure saturated steam at 394.15 K (121 • C) using an autoclave. These electrodes presented a stable potential between pH 2 and 11. The electrode surface was characterized by scanning electron microscopy and showed the presence of silver and salt particles. The size of the silver particles was less than 2.5 µm. We successfully applied the all-solid state reference electrodes in potentiometric cells to measure pH and potassium ions in complex matrix by direct potentiometry and Lascorbic acid by potentiometric titration.

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All-solid-state miniaturised planar reference electrodes based on ionic liquids

Cited by 86 publications

References 22 publications

Application of Room Temperature Ionic Liquids in Electrochemical Sensors and Biosensors

Application of Room Temperature Ionic Liquids in Electrochemical Sensors and Biosensors

Solid‐Contact Reference Electrodes Based on Lipophilic Salts

Alternative strategy for manufacturing of all-solid-state reference electrodes for potentiometry

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