Solid-state ammonia sensor based on Berthelot's reaction

King Tong Lau; Steve Edwards; Dermot Diamond

doi:10.1016/j.snb.2003.08.004

Solid-state ammonia sensor based on Berthelot's reaction

King Tong Lau^*, Steve Edwards, Dermot Diamond

^*Corresponding author for this work

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

56 Citations (Scopus)

Abstract

A non-reversible solid-state ammonia sensor based on formation of indophenol blue has been developed. A new optimised reaction conditions found for Berthelot's reaction allow the sensor to respond to dissolved ammonia in ambient conditions at a much faster reaction rate than previously known. This solid-state colorimetric sensor reaches maximum colour intensity in ∼3 min at room temperature (∼20 °C) and responds linearly to ammonia between 1 and 10 ppm. A semi-automatic imaging system that consists of a black and white digital camera illuminated by red, green and blue LEDs was developed to measure the sensor responses.

Original language	English
Pages (from-to)	12-17
Number of pages	6
Journal	Sensors and Actuators, B: Chemical
Volume	98
Issue number	1
DOIs	https://doi.org/10.1016/j.snb.2003.08.004
Publication status	Published - 1 Mar 2004
Externally published	Yes

Keywords

Ammonia detection
Berthelot's reaction
Colorimetric method
Disposable sensor
Optical sensor
Solid-state ammonia sensor
Water monitoring

Access to Document

10.1016/j.snb.2003.08.004

Cite this

@article{fa9e171122bd4f8d94883dffe80f6f9e,

title = "Solid-state ammonia sensor based on Berthelot's reaction",

abstract = "A non-reversible solid-state ammonia sensor based on formation of indophenol blue has been developed. A new optimised reaction conditions found for Berthelot's reaction allow the sensor to respond to dissolved ammonia in ambient conditions at a much faster reaction rate than previously known. This solid-state colorimetric sensor reaches maximum colour intensity in ∼3 min at room temperature (∼20 °C) and responds linearly to ammonia between 1 and 10 ppm. A semi-automatic imaging system that consists of a black and white digital camera illuminated by red, green and blue LEDs was developed to measure the sensor responses.",

keywords = "Ammonia detection, Berthelot's reaction, Colorimetric method, Disposable sensor, Optical sensor, Solid-state ammonia sensor, Water monitoring",

author = "Lau, \{King Tong\} and Steve Edwards and Dermot Diamond",

year = "2004",

month = mar,

day = "1",

doi = "10.1016/j.snb.2003.08.004",

language = "English",

volume = "98",

pages = "12--17",

journal = "Sensors and Actuators, B: Chemical",

issn = "0925-4005",

number = "1",

}

TY - JOUR

T1 - Solid-state ammonia sensor based on Berthelot's reaction

AU - Lau, King Tong

AU - Edwards, Steve

AU - Diamond, Dermot

PY - 2004/3/1

Y1 - 2004/3/1

N2 - A non-reversible solid-state ammonia sensor based on formation of indophenol blue has been developed. A new optimised reaction conditions found for Berthelot's reaction allow the sensor to respond to dissolved ammonia in ambient conditions at a much faster reaction rate than previously known. This solid-state colorimetric sensor reaches maximum colour intensity in ∼3 min at room temperature (∼20 °C) and responds linearly to ammonia between 1 and 10 ppm. A semi-automatic imaging system that consists of a black and white digital camera illuminated by red, green and blue LEDs was developed to measure the sensor responses.

AB - A non-reversible solid-state ammonia sensor based on formation of indophenol blue has been developed. A new optimised reaction conditions found for Berthelot's reaction allow the sensor to respond to dissolved ammonia in ambient conditions at a much faster reaction rate than previously known. This solid-state colorimetric sensor reaches maximum colour intensity in ∼3 min at room temperature (∼20 °C) and responds linearly to ammonia between 1 and 10 ppm. A semi-automatic imaging system that consists of a black and white digital camera illuminated by red, green and blue LEDs was developed to measure the sensor responses.

KW - Ammonia detection

KW - Berthelot's reaction

KW - Colorimetric method

KW - Disposable sensor

KW - Optical sensor

KW - Solid-state ammonia sensor

KW - Water monitoring

UR - https://www.scopus.com/pages/publications/1342264309

U2 - 10.1016/j.snb.2003.08.004

DO - 10.1016/j.snb.2003.08.004

M3 - Article

AN - SCOPUS:1342264309

SN - 0925-4005

VL - 98

SP - 12

EP - 17

JO - Sensors and Actuators, B: Chemical

JF - Sensors and Actuators, B: Chemical

IS - 1

ER -

Solid-state ammonia sensor based on Berthelot's reaction

Abstract

Keywords

Access to Document

Other files and links

Cite this