Near real time vapor detection and enhancement using aerosol adsorption

Patent · Fri Jan 01 04:00:00 EST 1999

OSTI ID:872425

Novick, Vincent J ^[1]; Johnson, Stanley A ^[2]

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1. Downers Grove, IL
2. Countryside, IL

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.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5932818
• OSTI ID: 872425
• Country of Publication: United States
• Language: English

Related Subjects

/73/250/356/
adsorbed
adsorption
aerosol
air
air stream
alternatively
ambient
ambient air
analyzing
background
contains
detecting
detection
detection method
directed
directing
effective
element
enhancement
essentially
forming
generating
ground particle
ground particles
identifying
impacted
impacting
infrared
infrared light
light
median
method
microcomputer
mixing
natural
near
particle
particle size
particles
particular
reflecting
sample
sample detection
size
spectrometer
steps
stream
supply
surrounding
suspended
time
vapor
vapor detection
vapor sample