Polyaniline-based optical ammonia detector
Patent
·
OSTI ID:874519
- Los Alamos, NM
Electronic absorption spectroscopy of a polyaniline film deposited on a polyethylene surface by chemical oxidation of aniline monomer at room temperature was used to quantitatively detect ammonia gas. The present optical ammonia gas detector was found to have a response time of less than 15 s, a regeneration time of less than 2 min. at room temperature, and a detection limit of 1 ppm (v/v) for ammonia, with a linear dynamic range from 180 ppm to 18,000 ppm.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- DOE Contract Number:
- W-7405-ENG-36
- Assignee:
- The Regents of the University of California (Los Alamos, NM)
- Patent Number(s):
- US 6406669
- OSTI ID:
- 874519
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
polyaniline-based
optical
ammonia
detector
electronic
absorption
spectroscopy
polyaniline
film
deposited
polyethylene
surface
chemical
oxidation
aniline
monomer
temperature
quantitatively
detect
gas
found
response
time
15
regeneration
detection
limit
ppm
vv
linear
dynamic
range
180
18000
dynamic range
ammonia gas
absorption spectroscopy
film deposited
chemical oxidation
/422/436/
optical
ammonia
detector
electronic
absorption
spectroscopy
polyaniline
film
deposited
polyethylene
surface
chemical
oxidation
aniline
monomer
temperature
quantitatively
detect
gas
found
response
time
15
regeneration
detection
limit
ppm
vv
linear
dynamic
range
180
18000
dynamic range
ammonia gas
absorption spectroscopy
film deposited
chemical oxidation
/422/436/