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Dioxins are toxic and persistent molecules covered by the Stockholm Convention and several governments require their analysis in environmental samples. Microwave assisted solvent extraction is a well-established sample preparation technique applied in several official methods. Milestone’s ETHOS X equipped with SR-15 eT rotor and glass vial kit was used in this study to prove its efficacy in the extraction of dioxins from Fly ash samples.
The incineration of municipal solid or medical waste is prone to high dioxins emissions. Typically, the dioxins produced from incinerators are captured by the air pollution control division (APCD) and remain in the fly ash.
The analysis of dioxins in fly ash can be very challenging and many methods have been developed over time to obtain good recoveries from this difficult matrix.
Dioxins and furans are toxic chemicals that persist in the environment and accumulate in the food chain.
Longer-term exposure to these substances has been shown to cause a range of adverse effects on the nervous, immune and endocrine systems, impair reproductive function and they may also cause cancer1.
Their persistence and the fact that they accumulate in the food chain, notably in animal fat, are the main cause of safety concerns. Since their toxicity and persistence, dioxins are listed in the POPs (Persistent Organic Pollutants) covered by the Stockholm Convention2.
US EPA 35463 outlines the procedure for extracting water insoluble or slightly water-soluble organic compounds from soils, clays, sediments, sludges, and solid wastes.
US EPA 3546 is a specific method for Microwave Assisted Extraction (MAE), a well-established sample preparation technique that enables extractions with reduced solvent volume and time.
The analysis of dioxins in fly ash can be very challenging and many methods have been developed over time to obtain good recoveries from this difficult matrix.
Dioxins and furans are toxic chemicals that persist in the environment and accumulate in the food chain.
Longer-term exposure to these substances has been shown to cause a range of adverse effects on the nervous, immune and endocrine systems, impair reproductive function and they may also cause cancer1.
Their persistence and the fact that they accumulate in the food chain, notably in animal fat, are the main cause of safety concerns. Since their toxicity and persistence, dioxins are listed in the POPs (Persistent Organic Pollutants) covered by the Stockholm Convention2.
US EPA 35463 outlines the procedure for extracting water insoluble or slightly water-soluble organic compounds from soils, clays, sediments, sludges, and solid wastes.
US EPA 3546 is a specific method for Microwave Assisted Extraction (MAE), a well-established sample preparation technique that enables extractions with reduced solvent volume and time.
This application report represents a guideline for the extraction of dioxins and furans from standard reference materials using the official method EPA 3546. Download it by clicking on the button below.
Tags: application report, extraction, dioxins