Determination of Environmental Pollutants by Gas Chromatography/Mass Spectrometry with Chemometrics
Year: 2014
Type: article
Abstract: This dissertation focuses on the determination of environmental pollutants (i.e., polychlorinated biphenyls, trichloroethylene) using gas chromatography/mass spectrometry (GC/MS) with chemometrics.First, a novel fast screening method was developed for the determination of polychlorinated biphenyls (PCBs) that are constituents of the commercial mixture, Aroclor 1260, in soil matrices by GC/MS combined with solid-phase microextraction (SPME).The advantages of the use of potassium dichromate and sulfuric acid solution for the extraction of PCBs from soil are fully discussed.It is the first time to use SPME-GC/MS for the quantitative study of Aroclor.Second, a fast method for the identification of 7 Aroclors by GC/MS and chemometrics is described.The modulo compression was introduced and evaluated for the classification of complex mixtures of PCBs by GC/MS for the first time.A fuzzy rule-building expert system (FuRES), fuzzy optimal associative memories (FOAMs), and partial least-squares discriminant analysis (PLS-DA) are compared with
Author: Mengliang Zhang
Institution: Ohio University
Language: English
Subfield: Analytical Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2612845331