Optofluidic fluorescence cell for the detection of low concentration toxic gases

•Optofluidics, portable gas analyzer , Formaldehyde, online toxic gas analysis.•Fluorescence-based detection of low Formaldehyde concentrations.•Decrease of the volume of used chemicals.•Short-time detection.•Fast renewing time.•High accuracy. This paper shows the development of a new microfluidic c...

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Bibliographic Details
Published in:Sensors and actuators. B, Chemical Chemical, 2018-02, Vol.255, p.3441-3446
Main Authors: Allouch, A., Guglielmino, M., Serra, C.A., Le Calvé, S.
Format: Article
Language:English
Subjects:
Airborne particulates
Aldehydes
Analytical chemistry
Chemical and Process Engineering
Chemical compounds
Commercialization
Engineering Sciences
Fluorescence
Formaldehyde
Hazardous materials
Low concentrations
Microfluidics
Optofluidics
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Summary:•Optofluidics, portable gas analyzer , Formaldehyde, online toxic gas analysis.•Fluorescence-based detection of low Formaldehyde concentrations.•Decrease of the volume of used chemicals.•Short-time detection.•Fast renewing time.•High accuracy. This paper shows the development of a new microfluidic cell for the detection of fluorescent compounds at sub-μgL−1 concentrations. The microfluidic cell is calibrated for the detection of Formaldehyde through its reaction with Fluoral P which produces the fluorescent DDL (3,5-diacetyl-1,4-dihydrolutidine). After a comparison with a commercialized fluorescence cell, the microfluidic cell was found to be much better in terms of volume, sensitivity, renewing time and price.
ISSN:0925-4005
1873-3077
DOI:10.1016/j.snb.2017.09.174