Hydrogen peroxide detection with improved selectivity and sensitivity using constant-current potentiometry

T.V.A. Dam; Wouter Olthuis; Piet Bergveld

doi:10.1016/S0925-4005(03)00058-3

Hydrogen peroxide detection with improved selectivity and sensitivity using constant-current potentiometry

T.V.A. Dam, Wouter Olthuis, Piet Bergveld

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

24 Citations (Scopus)

Abstract

In this paper, a potentiometric H2O2 sensor based on a FET structure is presented. The sensor has a redox active gate contact such as Os-polyvinylpyridine (Os-PVP) containing the enzyme horseradish peroxidase (HRP) which has a high sensitivity to H2O2. The basic principle of the sensor is to measure hydrogen peroxide concentration by means of measuring the change in the work function of the electroactive gate of the FET due to its redox reaction with H2O2. A constant current potentiometric mode is used to improve the sensitivity of the sensor. To avoid the influence of ascorbic acid on the sensor, an additional layer of Nafion is mounted on top of the electroactive gate. The influence of the Nafion concentration on the characteristics of the sensor (sensitivity and selectivity) has also been investigated.

Original language	Undefined
Pages (from-to)	1-4
Number of pages	4
Journal	Sensors and actuators. B: Chemical
Volume	91
Issue number	1-3
DOIs	https://doi.org/10.1016/S0925-4005(03)00058-3
Publication status	Published - 2003

Keywords

METIS-213422
IR-75018
Constant current potentiometry
Ascorbic acid
Hydrogen peroxide sensor

Access to Document

10.1016/S0925-4005(03)00058-3

Cite this

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title = "Hydrogen peroxide detection with improved selectivity and sensitivity using constant-current potentiometry",

abstract = "In this paper, a potentiometric H2O2 sensor based on a FET structure is presented. The sensor has a redox active gate contact such as Os-polyvinylpyridine (Os-PVP) containing the enzyme horseradish peroxidase (HRP) which has a high sensitivity to H2O2. The basic principle of the sensor is to measure hydrogen peroxide concentration by means of measuring the change in the work function of the electroactive gate of the FET due to its redox reaction with H2O2. A constant current potentiometric mode is used to improve the sensitivity of the sensor. To avoid the influence of ascorbic acid on the sensor, an additional layer of Nafion is mounted on top of the electroactive gate. The influence of the Nafion concentration on the characteristics of the sensor (sensitivity and selectivity) has also been investigated.",

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T1 - Hydrogen peroxide detection with improved selectivity and sensitivity using constant-current potentiometry

AU - Dam, T.V.A.

AU - Olthuis, Wouter

AU - Bergveld, Piet

PY - 2003

Y1 - 2003

N2 - In this paper, a potentiometric H2O2 sensor based on a FET structure is presented. The sensor has a redox active gate contact such as Os-polyvinylpyridine (Os-PVP) containing the enzyme horseradish peroxidase (HRP) which has a high sensitivity to H2O2. The basic principle of the sensor is to measure hydrogen peroxide concentration by means of measuring the change in the work function of the electroactive gate of the FET due to its redox reaction with H2O2. A constant current potentiometric mode is used to improve the sensitivity of the sensor. To avoid the influence of ascorbic acid on the sensor, an additional layer of Nafion is mounted on top of the electroactive gate. The influence of the Nafion concentration on the characteristics of the sensor (sensitivity and selectivity) has also been investigated.

AB - In this paper, a potentiometric H2O2 sensor based on a FET structure is presented. The sensor has a redox active gate contact such as Os-polyvinylpyridine (Os-PVP) containing the enzyme horseradish peroxidase (HRP) which has a high sensitivity to H2O2. The basic principle of the sensor is to measure hydrogen peroxide concentration by means of measuring the change in the work function of the electroactive gate of the FET due to its redox reaction with H2O2. A constant current potentiometric mode is used to improve the sensitivity of the sensor. To avoid the influence of ascorbic acid on the sensor, an additional layer of Nafion is mounted on top of the electroactive gate. The influence of the Nafion concentration on the characteristics of the sensor (sensitivity and selectivity) has also been investigated.

KW - METIS-213422

KW - IR-75018

KW - Constant current potentiometry

KW - Ascorbic acid

KW - Hydrogen peroxide sensor

U2 - 10.1016/S0925-4005(03)00058-3

DO - 10.1016/S0925-4005(03)00058-3

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JO - Sensors and actuators. B: Chemical

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