Analysis of trace volatiles by gas chromatograph/mass spectrometer data system. Interim report Jan 76-Oct 77

Technical Report · Thu Dec 01 04:00:00 EST 1977

OSTI ID:7057407

Martin, C L; Lackey, W W; Conkle, J P; Miller, R L

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)

• Research Organization: School of Aerospace Medicine, Brooks AFB, TX (USA)
• OSTI ID: 7057407
• Report Number(s): AD-A-050912; SAM-TR-77-28
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ADSORPTION
AIR POLLUTION MONITORS
CHEMICAL ANALYSIS
CHROMATOGRAPHY
CRYOGENICS
GAS CHROMATOGRAPHY
HYDROCARBONS
MASS SPECTROSCOPY
ORGANIC COMPOUNDS
QUANTITATIVE CHEMICAL ANALYSIS
SAMPLING
SEPARATION PROCESSES
SORPTION
SPECTROSCOPY
TRACE AMOUNTS