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Parts-per-Trillion SVOC Air Analysis
EP22885
Poster Title: Parts-per-Trillion SVOC Air Analysis
Submitted on 10 Apr 2015
Author(s): MARTIN L. SPARTZ Ph.D., Anthony S. Bonanno Ph.D., Stacey E. Beyer, Alice E. Delia Ph.D.
Affiliations: Prism Analytical Technologies, Mt. Pleasant, MI 48858
This poster was presented at Pittcon 2015
Poster Views: 1,727
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Poster Information
Abstract: Ambient air analysis is now performed widely in homes and small businesses as well as the more traditional industrial
locations as the general public and businesses wish to better understand their air quality. These ambient air methods
customarily look for VOCs, more volatile SVOCs, mold VOCs, and combustion gases like NOx, CO, and CO2. SVOCs are
normally measured by collecting dust samples, which are subsequently extracted and/or prepared for analysis, instead of
air samples because the concentration in ambient air is too low for traditional environmental analytical methods.
Unfortunately, dust samples are generally not representative of the sample location due to the large area that needs to
be evenly sampled, much of which may be inaccessible due to furniture or other structures. If an air sample could be
collected and analyzed with appropriate sensitivity and selectivity, a more representative level of SVOCs in the home or
business could be determined.
A novel optical GC detection system (MAX™) has been developed that provides both quantitative and qualitative
determination of 100s of SVOCs at or below the single digit parts-per-trillion range (airborne concentration) from a single
sample. The MAX™ detection system utilizes optical spectroscopy to provide a one-time permanent calibration so many
compounds can be quantified in every sample. Increasingly costly helium is not required as a carrier gas, and the system
can be setup and running very quickly since high vacuum is not required as in the more traditional GC-MS based analyses.
The novel MAX™ detection technology and its application to SVOC air analysis will be discussed.
Summary: Prism Analytical Technologies, Inc. MAX™ technology combines the separation power of chromatography with the identification and quantitative analysis power of absorption spectroscopy. This patent pending technology traps the eluting gases from a GC column within a multiple pass FTIR gas cell for extended measurement. Detection limits rival that of MS and FID detectors. In addition, this design allows for constant instrument-to-instrument calibrations and operates with nitrogen carrier gas. Report abuse »
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