Solid-phase extraction (SPE) is a proven procedure for handling oil and grease. This technique is also more appropriate than the liquid-liquid extraction (LLE) approach. The SPE procedure is performed by following six steps: sample pretreatment; column solvation; column equilibration; sample loading...
Method 1664: N-Hexane Extractable Material (HEM) and Silica Gel Treated N-Hexane Extractable Material (SGT-HEM) by Extraction and Gravimetry (Oil and Grease and Total Petroleum Hydrocarbons). revised April 1995. (NTIS / PB95-239232 or http://www.epa.gov/waterscience/methods/1664.html or ...
glass wool stopped glass funnel containing approximately 10-20 g anhydrous sodium sulfate (pre-rinsed with n-hexane). Do not use filter paperc) Rinse the extract collection vials with hexane and add it to the sodium sulfate and collect. This will rinse the vial and the sodium sulfate. Poor...
US EPA Method 1664, 2007. Oil and Grease Analysis in Wastewater, United States Environmental Protection Agency, SW-846 Manual. U.S. Government Printing Office, Washington, DC. Available from: http://www.epa.gov/waterscience/ methods/method/oil/....
The Sp茅Dex 3000, a fully automated method for extracting oil and grease from aqueous samples, has developed by the Horizon Technology, after replacing the US EPA Method 413.1 by Method 1664A. The extraction system, using a combination of advanced liquid handling, SPE, and the Pacific line ...