Article Dans Une Revue Sensors and Actuators B: Chemical Année : 2012

Real-time detection of formaldehyde by a sensor

Résumé

A hand-held formaldehyde (HCHO) gas detector has been developed. This fluorescence-based system uses a standard microscope glass slide both as a transducer and a sensor. The detection of gaseous formaldehyde is performed using the well-known Sawicki reaction with Fluoral-P, a reagent present in the nanoporous thin film which allows a selective reaction with formaldehyde. The nanoporous film of hybrid organic-inorganic polymer, prepared via the sol-gel method, is coated on the microscope slide by spin-coating, enabling reproducible coatings of various shapes and thicknesses. Experiments were carried out in the laboratory to calibrate the instrument, with the objective to perform measurements indoor and outdoor. The real-time monitoring allows to detect formaldehyde pollution peaks.

Dates et versions

hal-00755553 , version 1 (21-11-2012)

Identifiants

Citer

M.N. Descamps, T. Bordy, J. Hue, S. Mariano, G. Nonglaton, et al.. Real-time detection of formaldehyde by a sensor. Sensors and Actuators B: Chemical, 2012, 170, pp.104-108. ⟨10.1016/j.snb.2011.02.032⟩. ⟨hal-00755553⟩
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