Analysis of Trace Volatiles by Gas Chromatograph/Mass Spectrometer Data System.
Interim rept. Jan 76-Oct 77,
SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TEX
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Methods and procedures are described for the analysis of trapped volatile samples by gas chromatography-mass spectrometry. The Tenax-GC sorbent tube sampler stainless steel and the desorption heater block described were developed in this laboratory to satisfy a USAF need for a field sampling method to complement the SAM cryogenic trapping system. The treatment of both sorbent-trapped and cryogenically-trapped samples is discussed showing that analysis and data reduction for sorbent tube samples are considerably less than that required for cryogenic samples. While the sorbent tube sampling method has advantages of lower cost, ease of portability, simplicity, and reduced analysis time, the cryogenic sampling system is the preferred method for trapping light hydrocarbons of less than five carbon atoms. Author
- Test Facilities, Equipment and Methods
- Air Pollution and Control