The Whatman SPE disc utilizes C-18 derivatized silica, incorporated into a glass microfiber matrix. The high flow and high loading capacity of the glass microfiber media allow for rapid aqueous sample flow rates, while oil, grease and other organic analytes are efficiently extracted and retained by the reverse phase silica material.

Features and Benefits
• High quality Whatman glass microfiber media for superior flow and high loading capacity
• Efficient grease analyte extraction and retention
• Prefilters available for difficult samples

Applications
• Oil and grease analysis, EPA Method 1664A