On the combination of porous silicon and Carbopack<sup>@</sup> B for DNT traces preconcentration - Archive ouverte HAL Accéder directement au contenu
Poster De Conférence Année : 2014

On the combination of porous silicon and Carbopack@ B for DNT traces preconcentration

Résumé

The development and the characterization of a preconcentrator device to determine trace levels of one of the markers of the explosive trinitrotoluene (TNT: 2,4-dinitrotoluene (2-4DNT) with a photo-ionization detector have been made. This preconcentrator is a silicon microreactor which has a deep-reactive-ion-etched (DRIE) cavity, filled with an adsorbent and a heater to monitor adsorption-desorption cycles. Different adsorbents (Tenax@, Carbon powder, Carbopack@) and also the Porous Silicon (obtained by DRIE of the Si device) have been compared by TPD analyses and adsorption/desorption cycles. The best performances for DNT preconcentration are obtained with a combination of Carbopack@B (C-B) and Porous Silicon (PS)
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Dates et versions

hal-01107845 , version 1 (21-01-2015)

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  • HAL Id : hal-01107845 , version 1

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Frank James, Philippe Breuil, Christophe Pijolat, Jean-Paul Viricelle, El Hadji Malik Camara, et al.. On the combination of porous silicon and Carbopack@ B for DNT traces preconcentration. IMCS (15th International Meeting on Chemical Sensors), Mar 2014, Buenos Aires, Argentina. ⟨hal-01107845⟩
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