EPA Method 3541


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EPA Method 3541 Summary:
Automated Soxhlet Extraction

Scope:
Method 3541 describes the extraction of organic analytes from soil, sediment, sludges, and waste solids. The method uses a commercially available, unique, three stage extraction system to achieve analyte recovery comparable to Method 3540, but in a much shorter time. There are two differences between this extraction method and Method 3540. In the initial extraction stage of Method 3541, the sample-loaded extraction thimble is immersed into the boiling solvent. This ensures very rapid intimate contact between the specimen and solvent and rapid extraction of the organic analytes. In the second stage the thimble is elevated above the solvent, and is rinse-extracted as in Method 3540. In the third stage, the solvent is evaporated, as would occur in the Kuderna-Danish (K-D) concentration step in Method 3540. The concentrated extract is then ready for cleanup (Method 3600) followed by measurement of the organic analytes.

Report Number:
SW-846 Ch 4.2.1

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Examples:  8260
TO-15

Examples:  Dioxin
Mercury
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Related Methods:
EPA Method 14    EPA Method 130.1    EPA Method 218.3    EPA Method 218.4    EPA Method 245.2    EPA Method 310.2    EPA Method 325.1    EPA Method 325.2    EPA Method 325.6    EPA Method 335.3   


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