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OLS Field Name OLS Field Data
Main Title Analysis of method TO-A14 target analytes using a cryofocusing high-speed gas chromatograph interfaced to a high speed time-of-flight mass spectrometer {microform} /
Author Berkley, Richard E. ; Gardner, B. D. ; Holland, J. F.
CORP Author Environmental Protection Agency, Research Triangle Park, NC. National Exposure Research Lab. ;Michigan State Univ., East Lansing.
Publisher National Exposure Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1997
Report Number EPA/600/A-97/072
Stock Number PB98-116262
Subjects Chromatographic analysis--Equipment and supplies
Additional Subjects Quantitative chemical analysis ; Gas chromatography ; Mass spectrometers ; Air pollution sampling ; Analytical methods ; Chromatographic analysis ; Spectroscopic analysis ; Chromatographs ; Concentration(Composition) ; Calibration ; Volatile organic compounds ; EPA method TO-14 ; Cryofocusing
Holdings
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NTIS  PB98-116262 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation 16 p. ; 28 cm.
Abstract
A high-speed gas chromatograph coupled with a high-speed time-of-flight mass spectrometer was used to gain a six-fold increase in overall rate of analytical throughput for analysis of EPA Method TO-14 target compounds. One hundred mass spectra per second, ranging from 35 to 270 mass units, were collected. Sing.'e ion chromatograms were searched at appropriate retention times for chromatographic peaks, which were integrated. Thirty-eight of the forty-one TO-14 target compounds were calibrated using standards at five concentrations from 2.5 to 40 ppb. Four grab samples of ambient air were collected at four different locations at an automobile repair facility, and two grab samples were collected less than one minute apart at a site near a chemical plant, just before and just after passage of three large diesel trucks. All samples were analyzed on the same day they were collected.