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View Actual EPA Method 3611B (PDF File)
EPA Method 3611B:ALUMINA COLUMN CLEANUP AND SEPARATION OF PETROLEUM WASTES
Summary:The column is packed with the required amount of adsorbent, topped with a water adsorbent, and then loaded with the sample to be analyzed. Elution of the analytes is effected with a suitable solvent(s), leaving the interfering compounds on the column. The eluate is then concentrated (if necessary).
Scope:Alumina is a highly porous and granular form of aluminum oxide. It is available in three pH ranges (basic, neutral, and acidic) for use in chromatographic cleanup procedures. Method 3611 utilizes neutral pH alumina to separate petroleum wastes into aliphatic, aromatic, and polar fractions.
Report Number:SW-846 Ch 4.2.2