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Advertisement

Michael Telepchak

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Articles

Why All C18 SPE Phases Are Not Equal

Why All C18 SPE Phases Are Not Equal

Michael Telepchak;Craig A. Perman
June 1st 2011

Octadecyl bonded silica gel (C18) is widely used in solid-phase extraction (SPE), but there are many variations including particle size, pore size, surface chemistry, and carbon loading applications.

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Method 525.2 Update: Analyte Recoveries with New CCL3 Compounds

Michael Telepchak;Xiaoyan Wang;Jeffery Hackett;UCT, LLC;Don Shelly
June 1st 2011

EPA is updating method 525.2. The CCL3 includes 104 analytes. UCT has evaluated the recoveries of these compounds, including the current list, using proposed changes to the method with the C18-based UCT ENVIRO-CLEAN? 83 mL Extraction Cartridge ECUNI525.

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