Exploitation of a pH-sensitive hydrogel for CO2 detection

S. Herber; Wouter Olthuis; Piet Bergveld; Albert van den Berg

Exploitation of a pH-sensitive hydrogel for CO₂ detection

S. Herber, Wouter Olthuis, Piet Bergveld, Albert van den Berg

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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Abstract

In this paper is described how hydrogel is exploited as sensor material for the detection of carbon dioxide (CO₂). A pH-sensitive hydrogel disc, which swells and deswells in response to pH changes, was clamped between a pressure sensor membrane and a porous metal screen together with a bicarbonate solution. Bicarbonate reacts with CO₂ resulting in a pH change. The enclosed hydrogel will generate pressure as a response to the pH change. This pressure is a measure for the partial pressure of CO₂. The main advantage of this sensor principle is the lack of a reference electrode as required for potentiometric sensors.

Original language	English
Title of host publication	Proceedings of the 17th European Conference on Solid-State Transducers (EUROSENSORS), Braga, Portuga
Place of Publication	Braga, Portugal
Publisher	Barbarosa & Xavier
Pages	200-201
Number of pages	2
ISBN (Print)	972-98603-1-9
Publication status	Published - 21 Sept 2003
Event	Eurosensors XVII, European Conference on Solid-State Transducers - Guimaraes, Portugal Duration: 21 Sept 2003 → 24 Sept 2003

Conference

Conference	Eurosensors XVII, European Conference on Solid-State Transducers
Country/Territory	Portugal
City	Guimaraes
Period	21/09/03 → 24/09/03

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Cite this

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title = "Exploitation of a pH-sensitive hydrogel for CO2 detection",

abstract = "In this paper is described how hydrogel is exploited as sensor material for the detection of carbon dioxide (CO2). A pH-sensitive hydrogel disc, which swells and deswells in response to pH changes, was clamped between a pressure sensor membrane and a porous metal screen together with a bicarbonate solution. Bicarbonate reacts with CO2 resulting in a pH change. The enclosed hydrogel will generate pressure as a response to the pH change. This pressure is a measure for the partial pressure of CO2. The main advantage of this sensor principle is the lack of a reference electrode as required for potentiometric sensors.",

author = "S. Herber and Wouter Olthuis and Piet Bergveld and {van den Berg}, Albert",

year = "2003",

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booktitle = "Proceedings of the 17th European Conference on Solid-State Transducers (EUROSENSORS), Braga, Portuga",

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note = "Eurosensors XVII, European Conference on Solid-State Transducers ; Conference date: 21-09-2003 Through 24-09-2003",

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Exploitation of a pH-sensitive hydrogel for CO₂ detection. / Herber, S.; Olthuis, Wouter; Bergveld, Piet et al.
Proceedings of the 17th European Conference on Solid-State Transducers (EUROSENSORS), Braga, Portuga. Braga, Portugal: Barbarosa & Xavier, 2003. p. 200-201.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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AU - Herber, S.

AU - Olthuis, Wouter

AU - Bergveld, Piet

AU - van den Berg, Albert

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Y1 - 2003/9/21

N2 - In this paper is described how hydrogel is exploited as sensor material for the detection of carbon dioxide (CO2). A pH-sensitive hydrogel disc, which swells and deswells in response to pH changes, was clamped between a pressure sensor membrane and a porous metal screen together with a bicarbonate solution. Bicarbonate reacts with CO2 resulting in a pH change. The enclosed hydrogel will generate pressure as a response to the pH change. This pressure is a measure for the partial pressure of CO2. The main advantage of this sensor principle is the lack of a reference electrode as required for potentiometric sensors.

AB - In this paper is described how hydrogel is exploited as sensor material for the detection of carbon dioxide (CO2). A pH-sensitive hydrogel disc, which swells and deswells in response to pH changes, was clamped between a pressure sensor membrane and a porous metal screen together with a bicarbonate solution. Bicarbonate reacts with CO2 resulting in a pH change. The enclosed hydrogel will generate pressure as a response to the pH change. This pressure is a measure for the partial pressure of CO2. The main advantage of this sensor principle is the lack of a reference electrode as required for potentiometric sensors.

M3 - Conference contribution

SN - 972-98603-1-9

SP - 200

EP - 201

BT - Proceedings of the 17th European Conference on Solid-State Transducers (EUROSENSORS), Braga, Portuga

PB - Barbarosa & Xavier

CY - Braga, Portugal

T2 - Eurosensors XVII, European Conference on Solid-State Transducers

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