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Title: Polyaniline-based optical ammonia detector

Abstract

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.

Inventors:
 [1];  [1];  [1]
  1. Los Alamos, NM
Issue Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
OSTI Identifier:
874519
Patent Number(s):
6406669
Assignee:
The Regents of the University of California (Los Alamos, NM)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
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/

Citation Formats

Duan, Yixiang, Jin, Zhe, and Su, Yongxuan. Polyaniline-based optical ammonia detector. United States: N. p., 2002. Web.
Duan, Yixiang, Jin, Zhe, & Su, Yongxuan. Polyaniline-based optical ammonia detector. United States.
Duan, Yixiang, Jin, Zhe, and Su, Yongxuan. Tue . "Polyaniline-based optical ammonia detector". United States. https://www.osti.gov/servlets/purl/874519.
@article{osti_874519,
title = {Polyaniline-based optical ammonia detector},
author = {Duan, Yixiang and Jin, Zhe and Su, Yongxuan},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

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