Meso-scale VOC-mixture analyzer with tunable separation and microsensor array detection

Details

• Personal Author:
  Steinecker WH ; Zellers ET ; Zhong Q
• Description:
  A novel portable instrument developed for field determinations of complex mixtures of volative organic compounds (VOCs) is described. The key features of the instrument are a miniature multi-state absorbent preconcentrator/focuser, two series-coupled separation columns with pressure and temperature tunable retention control, and an integrated array of four chemiresistor (CR) sensors coated with Au-thiolate monolayer-protected nanoparticles (MPN). MPN-CR array response patterns are used with retention times to identify eluting vapors. Air is used as the carrier gas. Calilbrations of 20 common indoor air contaminants gave T.ODs in the range of 0.05 ng/g-0.53 ng/g for a 1 L sample volume. Results of preliminary analyses of characteristic VOCs generated from U.S. currency as well as vapor-phase markers of environmental tobacco smoke (ETS) at low- or sub- ng/g levels are presented. [Description provided by NIOSH]
• Subjects:
  Air Pollutants, Occupational Air Pollution, Indoor Environmental Exposure Environmental Pollution Laboratories Occupational Health Safety Smoke Tobacco Products
• Keywords:
  Air-contamination Analytical-processes Author Keywords: Microsensor Environmental-contamination Environmental-exposure ETS Gas-chromatography Gas Chromatography Gases Laboratory-testing Nanoparticle Nanotechnology Organic-compounds Protable Sensor Array Tobacco-smoke Volatiles

  More +
• ISSN:
  1875-5372
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Michigan ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  61-64
• Volume:
  35
• NIOSHTIC Number:
  nn:20042742
• Citation:
  Rare Metal Mater Eng 2006; 35(Suppl 3):61-64
• Contact Point Address:
  Edward T. Zellers, Department of Environmental Health Sciences, Unversity of Michigan, 109 S. Observatory St., Ann Arbor, MI 48109-2029
• Email:
  ezeller@umich.edu
• Federal Fiscal Year:
  2007
• Performing Organization:
  University of Michigan, Ann Arbor
• Peer Reviewed:
  True
• Start Date:
  20060601
• Source Full Name:
  Rare Metal Materials and Engineering
• Supplement:
  3
• End Date:
  20160430
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:a591aa186a2f06b7c9c012b3de1e86e126902719e12d5881e694201f86286c2bb7d164b76d226f64752ad59202a4688a0df589d888310594843a2a493cded8bb
• Download URL:
  https://stacks.cdc.gov/view/cdc/194871/cdc_194871_DS1.pdf
• File Type:
  [PDF - 350.68 KB ]