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Montemurro N., Postigo C., Chiron Serge, Barcelo D., Perez S. (2019). Analysis and fate of 14 relevant wastewater-derived organic pollutants in long-term exposed soil. Analytical and Bioanalytical Chemistry, 411 (12), 2687–2696. ISSN 1618-2642

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Lien direct chez l'éditeur doi:10.1007/s00216-019-01715-3

Titre
Analysis and fate of 14 relevant wastewater-derived organic pollutants in long-term exposed soil
Année de publication2019
Type de documentArticle référencé dans le Web of Science WOS:000464948100022
AuteursMontemurro N., Postigo C., Chiron Serge, Barcelo D., Perez S.
SourceAnalytical and Bioanalytical Chemistry, 2019, 411 (12), p. 2687–2696. p. 2687–2696 ISSN 1618-2642
RésuméThe growing use of reclaimed water in agriculture worldwide calls for developing high-sensitivity methods to quantify wastewater-derived organic contaminants in soils so that the potential risk of this irrigation practice can be properly assessed. This work describes an analytical method for the determination of trace levels of 14 drugs that are known to be poorly removed during conventional wastewater treatment in soil. The analytes selected for investigation included ten pharmaceuticals from different therapeutic classes (carbamazepine, diclofenac, cis-diltiazem, lamotrigine, methadone, midazolam, oxcarbazepine, sulfamethoxazole, trimethoprim, valsartan), one illicit drug (cocaine), and three transformation products/metabolites (acridone, 4-hydroxydiclofenac, and valsartan acid), thereby covering a broad range of physical-chemical properties. The methodology developed was based on ultrasonic solvent extraction (USE) of the analytes from the soil matrix, and subsequent clean-up and analysis of the USE extracts with a fully automated approach by means of solid-phase extraction and liquid chromatography-tandem mass spectrometry detection (online SPE-LC-MS/MS). The method was fully validated with affording method detection and quantification limits ranging from 0.03 to 1ngg(-1) and from 0.09 to 3.3ngg(-1), respectively. This method was applied to investigate the fate of the selected drugs in potting soil irrigated for a long term (60days) either with water containing the target compounds at a concentration of 200gL(-1) or with wastewater treatment plant effluent and thus, at real environmental concentrations. All investigated compounds were found to accumulate in soil irrigated with artificially fortified water. The highest accumulation potential was observed for cis-diltiazem followed by methadone and midazolam that presented average concentrations of 1517ngg(-1), 1041ngg(-1), and 962ngg(-1) d.w., respectively. On the contrary, oxcarbazepine (5.8ngg(-1)) and sulfamethoxazole (22ngg(-1)) were the target drugs presenting the lowest accumulation potential. Only trace levels of ten drugs were measured in soil irrigated with regenerated water (average concentrations between 1.6 and 4.7ngg(-1) d.w.).
Plan de classementSciences fondamentales / Techniques d'analyse et de recherche [020] ; Pollution [038] ; Pédologie [068]
LocalisationFonds IRD [F B010075612]
Identifiant IRDfdi:010075612
Lien permanenthttp://www.documentation.ird.fr/hor/fdi:010075612

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