Development of thermal programmed desorption mass spectrometry methods for environmental applications.
The physical availability of hydrophobic organic contaminants (HOCs) bound to soils and sediments often controls their environmental toxicity. Currently, complicated and time extensive procedures are necessary to determine physical availability. The development of thermal programmed desorption mass spectrometry (TPD-MS) techniques for environmental samples may make it possible to evaluate the physical availability of HOCs in soils and sediments and also calculate relevant release energy values for bound contaminants. This work focused on developing the analytical protocols and data processing requirements for studying the desorption of HOCs from various simple geosorbents using TPD-MS. The work seeks to document the use of the TPD-MS method as an environmental assessment tool and provide the reader with a working knowledge of the entire process.
Nicholl
Sara I
SI
University of Notre Dame, Department of Civil Engineering and Geological Sciences, 156 Fitzpatrick Hall, Notre Dame, IN 46556, USA.
Talley
Jeffrey W
JW
D000327:Adsorption; D004785:Environmental Pollutants / Q000032:analysis* / Q000633:toxicity; D019015:Geologic Sediments / Q000032:analysis*; D057927:Hydrophobic and Hydrophilic Interactions; D013058:Mass Spectrometry / Q000295:instrumentation / Q000379:methods*; D009930:Organic Chemicals / Q000032:analysis*; D012680:Sensitivity and Specificity; D012987:Soil / Q000032:analysis*; D013696:Temperature; D013997:Time Factors
D004785:Environmental Pollutants; D009930:Organic Chemicals; D012987:Soil