SEDL / STP / STP1221-EB / STP12653S

The Use of Supercritical Fluid Extraction as a Sample Preparation Technique for Soils

Levy, JM
Vice President of Technology and Customer Support, Suprex Corporation, Pittsburgh, PA

Dolata, LA
Applications Research Chemist, Senior R&D Chemist, and Chemist, Suprex Corporation, Pittsburgh, PA

Rosselli, AC
Applications Research Chemist, Senior R&D Chemist, and Chemist, Suprex Corporation, Pittsburgh, PA

Ravey, RM
Applications Research Chemist, Senior R&D Chemist, and Chemist, Suprex Corporation, Pittsburgh, PA

Pages: 6    Published: Jan 1994

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Abstract

Using off-line supercritical fluid extraction (SFE), polynuclear aromatic hydrocarbons (PAHs) were extracted at different levels from various soil and sediment matrices. Based upon GC/MS measurements a number of SFE operational parameters including pressure, temperature and flow rate, were optimized to yield the highest efficiencies with the best precision.