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Article Dans Une Revue Journal of Environmental Chemical Engineering Année : 2014

Analysis of chlordecone by LC/MS-MS in surface and wastewaters

Résumé

Chlordecone (also known as Kepone) was used extensively in the French West Indies until 1993. This persistent pollution raises the question of the faith of this pesticide through water treatment plants and its eventual release in the environment. To address this issue, a two-step methodology is herein proposed. First, a complete description of the analysis of \CLD\ is given using liquid chromatography with mass spectrometry (LC/MS-MS). The reliability of this analytical methodology was demonstrated in ultrapure water as well as in the presence of organic and/or inorganic compounds (groundwater, river water and nutritive solutions). The limits of quantification were decreased to 1.5 μg L−1. In a second part, the removal of \CLD\ is considered via the sorption onto activated sludge. Kinetics and isotherms of sorption were determined. Very short times (less than 5 min) were observed to reach the equilibrium. Moreover, a linear relationship was determined for the sorption equilibrium, which led to the conclusion that the solid/liquid partition coefficient was 7600 L kg−1, i.e. log KOC of 3.88, very close to the values encountered for the sorption of \CLD\ in soils.
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Dates et versions

hal-01016599 , version 1 (30-06-2014)

Identifiants

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Nicolas Cimetiere, Sylvain Giraudet, Marie Papazoglou, Hélène Fallou, Abdeltif Amrane, et al.. Analysis of chlordecone by LC/MS-MS in surface and wastewaters. Journal of Environmental Chemical Engineering, 2014, 2 (2), pp.849 - 856. ⟨10.1016/j.jece.2014.01.010⟩. ⟨hal-01016599⟩
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