A new approach for the analysis of volatiles in complex matrices
- Oak Ridge National Lab., TN (United States)
Analytical methods for the analysis of volatile organic compounds (VOCs) in water are well established in EPA methods. These methods, however, typically have limited applicability to the direct analysis of solid samples or complex media, falling short in the sample preparation and sampling areas. A novel off-line blender-purge and trap sampling device was developed to overcome some of the problems encountered in the analysis of VOCs in solids and/or complex matrices. The blender-purge and trap sampling device was designed to allow simultaneous or sequential homogenization and sampling of solids or complex media to be conducted in a closed system thereby minimizing loss of volatile analytes during the sample preparation steps. This device offers several unique advantages for analyzing complex matrices including the ability to customize the homogenization and purge processes to accommodate sampling of any solid or liquid matrix and the ability to be used in a purge and trap mode (purge outlet is connected to a sorbent trap for GC/MS analysis) or in a direct sampling mode (purge outlet is connected directly to an ion trap MS).
- OSTI ID:
- 210669
- Report Number(s):
- CONF-9505261--
- Country of Publication:
- United States
- Language:
- English
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