Measuring and testing – Sampler – sample handling – etc. – With constituent separation
Patent
1997-09-30
1999-08-03
Larkin, Daniel S.
Measuring and testing
Sampler, sample handling, etc.
With constituent separation
73 2804, 73 2805, 7386481, 250304, 356 38, G01N 2101
Patent
active
059328185
ABSTRACT:
A vapor sample detection method where the vapor sample contains vapor and ambient air and surrounding natural background particles. The vapor sample detection method includes the steps of generating a supply of aerosol that have a particular effective median particle size, mixing the aerosol with the vapor sample forming aerosol and adsorbed vapor suspended in an air stream, impacting the suspended aerosol and adsorbed vapor upon a reflecting element, alternatively directing infrared light to the impacted aerosol and adsorbed vapor, detecting and analyzing the alternatively directed infrared light in essentially real time using a spectrometer and a microcomputer and identifying the vapor sample.
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Mercer et al. "A Cascade Impactor Operating at Low Volumetric Flow Rates", Atomic Energy Commision-Lovelace Foundation, Fission Product Inhalation Project, Dec. 1962, pp. 1-19.
Johnson Stanley A.
Novick Vincent J.
Dvorscak Mark P.
LaMarre Mark F.
Larkin Daniel S.
Moser William R.
The United States of America as represented by the United States
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