title: Preconcentration modeling for the optimization of a micro gas preconcentrator applied to environmental monitoring.
abstract: This paper presents the optimization of a micro gas preconcentrator (μ-GP) system applied to atmospheric pollution monitoring, with the help of a complete modeling of the preconcentration cycle. Two different approaches based on kinetic equations are used to illustrate the behavior of the micro gas preconcentrator for given experimental conditions. The need for high adsorption flow and heating rate and for low desorption flow and detection volume is demonstrated in this paper. Preliminary to this optimization, the preconcentration factor is discussed and a definition is proposed.
authors: †Ecole Polytechnique Fédérale de Lausanne (EPFL), Institute of Microengineering (IMT), Sensors, Actuators and Microsystems Laboratory (SAMLAB), Maladière 71b, 2000 Neuchâtel, Switzerland.
authors: Malick
authors: M
authors: Camara
authors: ‡Ecole Nationale Supérieure des Mines, SPIN-EMSE, CNRS: UMR5307, LGF, 42023 Saint-Etienne, France.
authors: Philippe
authors: P
authors: Breuil
authors: †Ecole Polytechnique Fédérale de Lausanne (EPFL), Institute of Microengineering (IMT), Sensors, Actuators and Microsystems Laboratory (SAMLAB), Maladière 71b, 2000 Neuchâtel, Switzerland.
authors: Danick
authors: D
authors: Briand
authors: ‡Ecole Nationale Supérieure des Mines, SPIN-EMSE, CNRS: UMR5307, LGF, 42023 Saint-Etienne, France.
authors: Jean-Paul
authors: JP
authors: Viricelle
authors: ‡Ecole Nationale Supérieure des Mines, SPIN-EMSE, CNRS: UMR5307, LGF, 42023 Saint-Etienne, France.
authors: Christophe
authors: C
authors: Pijolat
authors: †Ecole Polytechnique Fédérale de Lausanne (EPFL), Institute of Microengineering (IMT), Sensors, Actuators and Microsystems Laboratory (SAMLAB), Maladière 71b, 2000 Neuchâtel, Switzerland.
authors: Nico F
authors: NF
authors: de Rooij
mesh_terms: D000397:Air Pollution / Q000032:analysis*; D001272:Atmosphere / Q000737:chemistry*; D004784:Environmental Monitoring; D005740:Gases / Q000032:analysis*; D008956:Models, Chemical
chemical_list: D005740:Gases