STUDY OF ALTERNATIVE ADSORBENTS FOR PRECONCENTRATION OF BENZENE AND TOLUENE: IMPROVING THE SENSITIVITY OF A MINIATURIZED GC TO PPT LEVELS

Irene Lara-Ibeas (1) , Alberto Rodríguez-Cuevas (2) , Christina Andrikopoulou (1) , Ali Ahmad Kassir (1) , Racha Kassem (1) , Lucien Baldas (3) , Stéphane Colin (3) , Stéphane Le Calvé (1)

1 ICPEES - Institut de chimie et procédés pour l'énergie, l'environnement et la santé
2 In’Air Solutions [Strasbourg, France]
3 ICA - Institut Clément Ader

In this work, SBA-16 and HKUST-1 have been investigated as alternative adsorbents for benzene and toluene preconcentration and compared with Carbopack B, the reference material for VOC sampling. They have been fully characterized and assessed in terms of preconcentration performances. For both materials, preconcentration tests shown higher preconcentration factors than the ones obtained with Carbopack B. Using these sorbents in a preconcentrator device, the detection limit of our miniaturized GC prototype was calculated to be 0.2 ppb for both compounds. Both adsorbents are promising for environmental applications in BTEX monitoring.

Mots clés: miniaturized GC; BTEX; environmental air monitoring; HKUST-1; SBA-16

Domaines: Chimie analytique; Micro et nanotechnologies/Microélectronique

Irene Lara-Ibeas, Alberto Rodríguez-Cuevas, Christina Andrikopoulou, Ali Ahmad Kassir, Racha Kassem, et al.. STUDY OF ALTERNATIVE ADSORBENTS FOR PRECONCENTRATION OF BENZENE AND TOLUENE: IMPROVING THE SENSITIVITY OF A MINIATURIZED GC TO PPT LEVELS. µTAS 2018, Nov 2018, Kaohsiung, Taiwan. ⟨hal-02454389⟩