Comparison of Ion Mobility Spectrometry and Gas Chromatography with Dry Electrolytic Conductivity Detection for the Determination of Polychlorinated Biphenyls in Humus-Rich Soil

Ion Mobility Spectroscopy;GC/DELCD;extraction of PCBs from Soil;on-site analysis;Chemistry

Orton, Maureen L.

University of Waterloo

关键词: Ion Mobility Spectroscopy;    GC/DELCD;    extraction of PCBs from Soil;    on-site analysis;    Chemistry;   

Others  :  https://uwspace.uwaterloo.ca/bitstream/10012/2734/1/ML%20Orton%20Thesis%20Feb%202007.pdf

瑞士|英语

来源: UWSPACE Waterloo Institutional Repository

【 摘 要 】

Ion mobility spectroscopy (IMS) has been showen to provide fast on-site analysis of coarse sandy soil for the determination ofpolychlorinated biphenyls (PCBs). However the presence of humus results in instrument foaling and extensive down time do to instrument clean-up. For this reason a method was investigated for the ultrasonic extraction of PCBs from humus-rich soil that could be used at remote locations. Analysis of the extracted PCBs was conducted using 1) IMS and 2) gas chromatogram equipped with a dry electolytic conductiviy detector (GC/DELCD). The research conducted for this thesis outlines the method development and analysis of PCBS using these two instruments. The IMS analyiss was found to be complicated by co-extracted matrix compounds. Results and limitations ofIMS analysisare present here. The method development and validation of a method for the ultrasonic extraction and analysis of PCBs using the GC/DELCD is provided.