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The New Jersey Institute of Technology's
Electronic Theses & Dissertations Project

Title: Supercritical fluid extraction (SFE) and high performance liquid chromotography (HPLC) analysis of polycyclic aromatic hydrocarbon (PAH) contaminated soil
Author: Gargas, Marie Renee
View Online: njit-etd1998-059
(xi, 57 pages ~ 3.1 MB pdf)
Department: Department of Chemical Engineering, Chemistry and Environmental Science
Degree: Master of Science
Program: Environmental Science
Document Type: Thesis
Advisory Committee: Armenante, Piero M. (Committee chair)
Kafkewitz, David (Committee member)
Mukherjee, Sudhi (Committee member)
Date: 1998-08
Keywords: Electric filters.
Supercritical fluid extraction.
Polycyclic aromatic hydrocarbons--Environmental aspects.
Availability: Unrestricted
Abstract:

Methods for the extraction and analysis of polycyclic aromatic hydrocarbons (PAHs) from contaminated soil were evaluated for use in a treatability study. Candidate procedures were selected from EPA SW-846 (Third Edition) methods. Soxhlet extraction (3540B) was selected to determine initial PAH concentrations. Supercritical fluid extraction with carbon dioxide (SFE: 3561) and high performance liquid chromatography (HPLC: 8310) were evaluated for use as the extraction and analysis methods. Experimental soil was obtained from a petroleum product refinery site; a Certified Reference Material (CRM) was also studied.

Experiments focused on determining concentrations of anthracene, chrysene, fluoranthene, phenanthrene, and pyrene in untreated experimental soil; recoveries from SFE and Soxhlet extraction were compared. SFE method 3561 uses a 5%, 1/4 (v/v) methanol/water modifier; a 5% methanol modifier was also evaluated. Soxhlet extractions yielded the highest recoveries of the PAHs with the exception of fluoranthene, recovered only after SFE with the pure methanol modifier.


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