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Selective Real-Time Detection of Olefin Gases and Vapors.


PB93217115

Publication Date 1993
Personal Author Zellers, E. T.
Page Count 146
Abstract Coated surface acoustic wave (SAW) chemical sensors were developed for the selective measurement of toxic olefins and dienes. Specific attention was given to styrene (100425), ethyl-acrylate (140885), 1,3-butadiene (106990), acrylonitrile (107131), beta-chloroprene (126998), vinyl-chloride (75014), and vinylidene-chloride (75354). The device as constructed consisted of a piezoelectric substrate with two sets of interdigitated metal-electrode transducers deposited on the surface. The coating reagents used were all members of a class of square planar platinum olefin pi coordination complexes of the general formula trans-PtC12(olefin)(amine). They were designed to react via substitution of the initially bound olefin with certain olefins and dienes, forming stable products. By monitoring the rate of frequency change of the SAW sensor, the steady state rate of mass change accompanying the olefin substitution reaction could be measured, allowing real time monitoring of air levels of the analyte. Each of the target compounds was measurable using this general approach, with the exception of vinylidene-chloride. A prototype battery powered field instrument was designed and constructed which provided real time measurement of olefin and diene vapor concentrations, coating regeneration functions, and data logging capabilities.
Keywords
  • Air pollution monitors
  • Air pollution detection
  • Toxic substances
  • Alkene hydrocarbons
  • Dienes
  • Gas detectors
  • Air samplers
  • Performance evaluation
  • Public health
  • Vinyl chloride
  • Occupational safety and health
  • Air quality
  • Design criteria
  • Styrene
  • Acrylonitriles
  • Chloroprene
  • Surface acoustic wave sensors
  • Chemical sensors
  • CAS 100-42-5
  • CAS 140-88-5
  • CAS 106-99-0
  • CAS 107-13-1
  • CAS 126-99-8
  • CAS 75-01-4
  • CAS 75-35-4
  • Acrylic acid/(ethyl-ester)
Source Agency
  • National Institute for Occupational Safety and Health
NTIS Subject Category
  • 68A - Air Pollution & Control
  • 68G - Environmental Health & Safety
  • 99A - Analytical Chemistry
Corporate Authors Michigan Univ., Ann Arbor. Dept. of Environmental and Industrial Health.; National Inst. for Occupational Safety and Health, Cincinnati, OH.
Supplemental Notes Sponsored by National Inst. for Occupational Safety and Health, Cincinnati, OH.
Document Type Technical Report
Title Note Final rept.
NTIS Issue Number 199321
Selective Real-Time Detection of Olefin Gases and Vapors.
Selective Real-Time Detection of Olefin Gases and Vapors.
PB93217115

  • Air pollution monitors
  • Air pollution detection
  • Toxic substances
  • Alkene hydrocarbons
  • Dienes
  • Gas detectors
  • Air samplers
  • Performance evaluation
  • Public health
  • Vinyl chloride
  • Occupational safety and health
  • Air quality
  • Design criteria
  • Styrene
  • Acrylonitriles
  • Chloroprene
  • Surface acoustic wave sensors
  • Chemical sensors
  • CAS 100-42-5
  • CAS 140-88-5
  • CAS 106-99-0
  • CAS 107-13-1
  • CAS 126-99-8
  • CAS 75-01-4
  • CAS 75-35-4
  • Acrylic acid/(ethyl-ester)
  • National Institute for Occupational Safety and Health
  • 68A - Air Pollution & Control
  • 68G - Environmental Health & Safety
  • 99A - Analytical Chemistry
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