Bio-Based Colorimetric Sensors for Detecting Ammonia in the Air

Sustainable ammonia colorimetric sensors made from bio-based compounds prepared from agricultural waste are developed. The sensors operate at room temperature at two important concentration scales: an accident scale (> 50 ppm NH3 in the air) and a health and safety scale (1 ppm - 50 ppm NH3 in th...

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Bibliographic Details
Published in2023 IEEE SENSORS pp. 1 - 4
Main Authors Hagenaar, Jochem J., Oshovsky, Gennady V., Tempelman, Christiaan H.L., Majstorovic, Matej, Herselman, Jan F.
Format Conference Proceeding
LanguageEnglish
Published IEEE 29.10.2023
Subjects
5-hydroxymethylfurfural (HMF)
accidents detection
Ammonia
ammonia sensing
bio-based
Biosensors
Color
colorimetric sensors
Sensors
Temperature measurement
Temperature sensors
Time factors
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Summary:Sustainable ammonia colorimetric sensors made from bio-based compounds prepared from agricultural waste are developed. The sensors operate at room temperature at two important concentration scales: an accident scale (> 50 ppm NH3 in the air) and a health and safety scale (1 ppm - 50 ppm NH3 in the air). The color change of the sensors reacting to ammonia can be followed by the naked eye and quantified with a homemade device and a smartphone. The sensors' response time to high ammonia concentrations (>50 ppm) is minutes, making them useful for safety applications, such as fast detection of ammonia leakages and accidents or alarming high ammonia concentrations at the workplace.
ISSN:2168-9229
DOI:10.1109/SENSORS56945.2023.10324893