Real-time monitoring of volatile organic compounds using chemica

Details Real-time monitoring of volatile organic compounds using chemica Real-time monitoring of volatile organic compounds using chemica

1998-04-17

1999-10-05

Williams, Hezron

Measuring and testing

Gas analysis

Gas chromatography

73 1902, 73 2342, 422 89, 436161, F16K 3102, B01D 1508, G01N 3002

Patent

active

059627743

ABSTRACT:
A system for on-line quantitative monitoring of volatile organic compounds (VOCs) includes pressure reduction means for carrying a gaseous sample from a first location to a measuring input location maintained at a low pressure, the system utilizing active feedback to keep both the vapor flow and pressure to a chemical ionization mode mass spectrometer constant. A multiple input manifold for VOC and gas distribution permits a combination of calibration gases or samples to be applied to the spectrometer.

REFERENCES:
patent: 3405549 (1968-10-01), Finley
patent: 3471692 (1969-10-01), Llewellyn et al.
patent: 3563083 (1971-02-01), Benz
patent: 3712111 (1973-01-01), Llewellyn
patent: 3933047 (1976-01-01), Fowler
patent: 4373549 (1983-02-01), Naleas et al.
patent: 5042501 (1991-08-01), Kenny et al.
patent: 5045694 (1991-09-01), Beavis et al.
patent: 5116764 (1992-05-01), Annino et al.
patent: 5142143 (1992-08-01), Fite et al.
patent: 5272337 (1993-12-01), Thompson et al.
patent: 5339673 (1994-08-01), Nakagawa et al.
patent: 5379629 (1995-01-01), Muller
patent: 5447556 (1995-09-01), Pleil et al.
patent: 5448922 (1995-09-01), Kimbell et al.
patent: 5610835 (1997-03-01), Dominquez et al.
patent: 5611846 (1997-03-01), Overton et al.
patent: 5621180 (1997-04-01), Simon et al.
patent: 5659170 (1997-08-01), Da Silveira et al.
patent: 5703359 (1997-12-01), Wampler, III
patent: 5811059 (1998-09-01), Genovese et al.
Dearth, et al, On-Line Measurement of Benzene and Toluene In Dilute Vehicle Exhaust by Mass Spectrometry, Environ. Sci. Technol., vol. 26, No. 8, 1992 .

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