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Volatile organic compound sensing devices

Patent ·
OSTI ID:870048
 [1];  [1];  [1];  [2]
  1. Idaho Falls, ID
  2. Stillwater, MN
+ Show Author Affiliations

Apparatus employing vapochromic materials in the form of inorganic double complex salts which change color reversibly when exposed to volatile organic compound (VOC) vapors is adapted for VOC vapor detection, VOC aqueous matrix detection, and selective VOC vapor detection. The basic VOC vapochromic sensor is incorporated in various devices such as a ground probe sensor, a wristband sensor, a periodic sampling monitor, a soil/water penetrometer, an evaporative purge sensor, and various vacuum-based sensors which are particularly adapted for reversible/reusable detection, remote detection, continuous monitoring, or rapid screening of environmental remediation and waste management sites. The vapochromic sensor is used in combination with various fiber optic arrangements to provide a calibrated qualitative and/or quantitative indication of the presence of VOCs.

Research Organization:
EG & G IDAHO INC
DOE Contract Number:
AC07-76ID01570
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Number(s):
US 5445795
OSTI ID:
870048
Country of Publication:
United States
Language:
English

References (3)

Feasibility of using liquid crystals for the development of molecularly selective fiber-optic chemical sensors journal October 1990
Development of a pulsed-laser, fiber-optic-based fluorimeter: determination of fluorescence decay times of polycyclic aromatic hydrocarbons in sea water journal January 1990
Measurement of sodium hydroxide concentration with a renewable reagent-based fiber-optic sensor journal October 1990

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Related Subjects

/422/
adapted
apparatus
apparatus employing
aqueous
arrangements
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calibrated
change
change color
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combination
complex
complex salts
compound
continuous
continuous monitoring
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double
employing
environmental
environmental remediation
evaporative
exposed
fiber
fiber optic
form
ground
incorporated
indication
inorganic
management
materials
matrix
monitor
monitoring
optic
organic
organic compound
particularly
particularly adapted
penetrometer
periodic
presence
probe
provide
purge
qualitative
quantitative
quantitative indication
rapid
remediation
remote
remote detection
reusable
reversible
reversibly
salts
sampling
screening
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sensing devices
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sites
soil
vacuum-based
vapochromic
vapor
vapor detection
vapors
various
various devices
voc
vocs
volatile
volatile organic
waste
water
wristband