Sampling of volatile organic compounds from combustion sources using Tedlar{reg_sign} bags with analysis by GC/MS
Book
·
OSTI ID:197376
- Radian Corp., Research Triangle Park, NC (United States)
- Environmental Protection Agency, Research Triangle Park, NC (United States)
A Tedlar{reg_sign} bag method (Draft SW-846 Method 0040) provides a detailed procedure for sampling volatile organic compounds from gaseous effluent sources such as hazardous waste incinerators. This method may be applied in situations where SW-846 Method 0030 (VOST) is not applicable such as highly concentrated (> 1 ppm) or very low boiling (< 30 C) compounds. Method 0040 may also be applied to compounds at high concentration (> 1 ppm) with boiling points {le} 121 C. Appropriate analytes must exhibit a loss in a Tedlar{reg_sign} bag of less than 20% over a 72-hour storage time. Either constant or proportional sampling may be used depending upon the variability in the emission flow rate. Gas chromatography/mass spectrometry (GC/MS) is the analytical method of choice. To develop an accurate and reproducible analytical method, a fixed loop interface to the GC/MS was designed. Calibration and instrument detection limits were determined for selected analytes. Instrument detection limits for vinyl chloride and benzene were 0.5 and 1.2 ppm, respectively. Accurate and reproducible preparation of gaseous standards in Tedlar{reg_sign} bags and dynamic spiking into the sampling train were demonstrated.
- OSTI ID:
- 197376
- Report Number(s):
- CONF-9405167--
- Country of Publication:
- United States
- Language:
- English
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