Improved method for quantification of persistent organic pollutants and its remediation using modified clays materials
| Autor: | Ana E. Burgos Castellanos, Helvécio C. Menezes, Zenilda de Lourdes Cardeal, Alejandro G. Haro, Tatiana A. Ribeiro-Santos |
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| Rok vydání: | 2019 |
| Předmět: |
Pollutant
Chemistry Environmental remediation 010401 analytical chemistry 02 engineering and technology Pesticide 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Analytical Chemistry chemistry.chemical_compound Environmental chemistry Water treatment Gas chromatography Gas chromatography–mass spectrometry 0210 nano-technology Water pollution Spectroscopy Endosulfan |
| Zdroj: | Microchemical Journal. 150:104081 |
| ISSN: | 0026-265X |
| DOI: | 10.1016/j.microc.2019.104081 |
| Popis: | This study reports a direct immersion solid-phase microextraction method (DI-SPME) for the analysis of persistent organic pollutants (POPs), especially pesticide endosulfan, and 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) present at trace levels in water samples. The identification and quantification was performed by gas chromatography coupled to mass spectrometry (GC/MS). The optimized and validated methodology showed LOQs for endosulfan α and endosulfan β of 916.0 and 126.0 ng L−1 respectively, and for 2,3,7,8-TCDD of 10.0 ng L−1. Subsequently bentonite and vermiculite materials modified with cetyltrimethylammonium (CTA+) (B3CTA, B7CTA and B15CTA; V3CTA, V7CTA and V15CTA) were prepared, characterized and studied for the remediation of POPs in water. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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