Adaptation of diffusive gradients in thin films technique to sample organic pollutants in the environment: An overview of o-DGT passive samplers - Université de Limoges
Article Dans Une Revue Science of the Total Environment Année : 2019

Adaptation of diffusive gradients in thin films technique to sample organic pollutants in the environment: An overview of o-DGT passive samplers

Robin Guibal
Sophie Lissalde

Résumé

The adaptation of the diffusive gradients in thin films technique (DGT) to sample organic pollutants in the envi- ronment, called o-DGT has been performed since 2011 for various types of organic compounds (e.g. pesticides, pharmaceuticals, hormones, endocrine disrupting chemicals, household and personal care products). To sample these different compounds, configuration of the samplers (mainly receiving phase and diffusive gel) has to be adapted. Up-to-date, sampling of 142 organic compounds by this passive sampler have been tested. This review provides the state-of-art of o-DGT passive sampler development, describing theory and modelling, calibration, configuration of the devices, and field applications. The most used configurations were agarose-XAD-18 and agarose-HLB configuration. o-DGT can be used to sample soils and most of natural waters (range of pH 4–9 and ionic strength 0.001–0.1 M). This review discusses current limitation of o-DGT in light of the feedback of DGT use to sample inorganic contami- nants. It mainly concern the low sampling rates currently obtained by o-DGT compared to other passive samplers. This weakness could be compensated in the future with new sampler's design allowing an increase in exposure area.

Dates et versions

hal-04455574 , version 1 (05-07-2024)

Identifiants

Citer

Robin Guibal, Rémy Buzier, Sophie Lissalde, Gilles Guibaud. Adaptation of diffusive gradients in thin films technique to sample organic pollutants in the environment: An overview of o-DGT passive samplers. Science of the Total Environment, 2019, 693, pp.133537. ⟨10.1016/j.scitotenv.2019.07.343⟩. ⟨hal-04455574⟩

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