EPA Method 3051A

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EPA Method 3051A:

A representative sample is extracted and/or dissolved in concentrated nitric acid, or alternatively, concentrated nitric acid and concentrated hydrochloric acid using microwave heating with a suitable laboratory microwave unit. The sample and acid(s) are placed in a fluorocarbon polymer (PFA or TFM) or quartz microwave vessel or vessel liner. The vessel is sealed and heated in the microwave unit for a specified period of time. After cooling, the vessel contents are filtered, centrifuged, or allowed to settle and then diluted to volume and analyzed by the appropriate determinative method.

This microwave extraction method is designed to mimic extraction using conventional heating with nitric acid (HNO3), or alternatively, nitric acid and hydrochloric acid (HCl), according to EPA Method 200.2 and Method 3050. Since this method is not intended to accomplish total decomposition of the sample, the extracted analyte concentrations may not reflect the total content in the sample. This method is applicable to the microwave-assisted acid extraction/dissolutioná of sediments, sludges, soils, and oils.

Report Number:
SW-846 Ch 3.2

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Examples:  8260

Examples:  Dioxin
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