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The Use of “Green” Thermal Techniques to Simplify Analyses for the Protection of Human Health
Oral Presentation
Prepared by B. Peters, T. Wampler, G. Deger, B. Peters, K. Jansson
CDS Analytical, 465 Limestone Rd., Oxford, PA, 19363
Contact Information: bpeters@cdsanalytical.com; 610-932-3636
ABSTRACT
Traditionally, monitoring of water, soil, solids, air and consumer products (including food) involves numerous analytical techniques many involving the use of hazardous chemicals as extraction solvents. Methylene Chloride, Hexane, Carbon Disulfide, Benzene, Acetonitrile, and many other organic solvents can be used to extract organics from solids or liquids. Air monitoring can be done by collecting air in bulky, difficult to handle canisters, or with the use of dangerous and problematic liquid cryogens. Product emissions can be evaluated by solvent extraction or water based leaching.
Greener, cleaner Analytical techniques exist that are rarely used. Thermal desorption, Thermal Extraction and Pyrolysis are all techniques that involve the use of heat to free analytes from their matrix for analysis by GC. These techniques are used in mission-critical situations, like health & safety monitoring in many of the world’s most dangerous venues. Thermal desorption is used to monitor air for chemical agents like mustard, Sarin and VX, and in industrial facilities to detect toxic industrial chemicals (TICS) and ozone precursors. Versions of Headspace and Pyrolysis techniques are used throughout the world for evaluating polymers in all forms (Paints, adhesives, plastics, bio mass, even looking for life on Mars)
This Presentation will show the latest in thermal techniques and discuss several advantages over the more popular techniques involving solvents, canisters, and liquid cryogens.
Oral Presentation
Prepared by B. Peters, T. Wampler, G. Deger, B. Peters, K. Jansson
CDS Analytical, 465 Limestone Rd., Oxford, PA, 19363
Contact Information: bpeters@cdsanalytical.com; 610-932-3636
ABSTRACT
Traditionally, monitoring of water, soil, solids, air and consumer products (including food) involves numerous analytical techniques many involving the use of hazardous chemicals as extraction solvents. Methylene Chloride, Hexane, Carbon Disulfide, Benzene, Acetonitrile, and many other organic solvents can be used to extract organics from solids or liquids. Air monitoring can be done by collecting air in bulky, difficult to handle canisters, or with the use of dangerous and problematic liquid cryogens. Product emissions can be evaluated by solvent extraction or water based leaching.
Greener, cleaner Analytical techniques exist that are rarely used. Thermal desorption, Thermal Extraction and Pyrolysis are all techniques that involve the use of heat to free analytes from their matrix for analysis by GC. These techniques are used in mission-critical situations, like health & safety monitoring in many of the world’s most dangerous venues. Thermal desorption is used to monitor air for chemical agents like mustard, Sarin and VX, and in industrial facilities to detect toxic industrial chemicals (TICS) and ozone precursors. Versions of Headspace and Pyrolysis techniques are used throughout the world for evaluating polymers in all forms (Paints, adhesives, plastics, bio mass, even looking for life on Mars)
This Presentation will show the latest in thermal techniques and discuss several advantages over the more popular techniques involving solvents, canisters, and liquid cryogens.