Prototype Instrument Employing an Integrated Array of Polymer-Coated Flexural-Plate-Wave (FPW) Vapor Sensors

Details

• Personal Author:
  Cai QY ; Heldsinger D ; Hsieh MD ; Park J ; Zellers ET ; Cai QY ; Heldsinger D ; Hsieh MD ; Park J ; Zellers ET
• Description:
  Preliminary testing of a prototype instrument employing an integrated array of six polymer-coated flexural plate wave (FPW) sensors and an adsorbent preconcentrator is described. Measurements of eight vapors individually and in selected binary and ternary mixtures were collected. Responses were linear with concentration and mixture responses were equivalent to the sums of the component vapor responses. Limits of detection as low as 0.3 ppm were achieved from a 60-sec (200 cm3) air sample. Increases in sampling flow rates (volumes) led to commensurate increases in responses. However, for a given sample volume, increases in the desorption flow rate led to decreases in response maxima indicating that sorption kinetics limit responses at higher flow rates. Modeling of array performance using Monte Carlo simulations indicate that all individual vapors and certain 2 degrees and 3 degrees mixtures could be recognized/discriminated with very low error. More complex mixtures, and those containing homologous vapors, were problematic. [Description provided by NIOSH]
• Subjects:
  Air Pollutants, Occupational Air Pollution Air Pollution, Indoor Emergencies Emergency Responders Environmental Monitoring Hazardous Substances Occupational Exposure Occupational Health Personal Protective Equipment Protective Clothing Safety Solvents

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• Keywords:
  Air-quality Air-quality-control Air-quality-monitoring Emergency-responders Emergency-response Exposure-assessment Exposure-levels Occupational-exposure Organic-compounds Organic-vapors Protective-clothing Toxic-effects Toxic-vapors Toxins Vapors

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• ISBN:
  156677246X
• Publisher:
  The Electrochemical Society
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Proceedings ; Proceedings
• Place as Subject:
  Michigan ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH) ; National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health ; Workplace Safety & Health
• Location:
  North America ; North America
• Pages in Document:
  216-223
• NIOSHTIC Number:
  nn:20030735
• Citation:
  Proceedings of the 196th Meeting of the Electrochemical Society, October 17-22, 1999, Honolulu, Hawaii. Pennington, NJ: The Electrochemical Society, 1999 Oct; :216-223
• Email:
  ezellers@umich.edu
• Federal Fiscal Year:
  2000
• Performing Organization:
  University of Michigan, Ann Arbor
• Peer Reviewed:
  False
• Start Date:
  19980930
• Source Full Name:
  Proceedings of the 196th Meeting of the Electrochemical Society, October 17-22, 1999, Honolulu, Hawaii
• End Date:
  20060531
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:53226eb977700db16a92cca414833805c3f0c149aa36a651985b68e0915dc3a2ead5b16455e24c12ee44654bd15b5f14d4203f2f3c611338d2dd81d1614ef54a
• Download URL:
  https://stacks.cdc.gov/view/cdc/191253/cdc_191253_DS1.pdf
• File Type:
  [PDF - 948.25 KB ]