Development of a cobinamide-based end-of-service-life indicator for detection of hydrogen cyanide gas

Details

• Personal Author:
  Bell S ; Boss GR ; Finklea HO ; Fry NL ; Greenawald LA ; Sailor MJ ; Snyder JL
• Description:
  We describe an inexpensive paper-based sensor for rapid detection of low concentrations (ppm) of hydrogen cyanide gas. A piece of filter paper pre-spotted with a dilute monocyanocobinamide [CN(H2O)Cbi] solution was placed on the end of a bifurcated optical fiber and the reflectance spectrum of the CN(H2O)Cbi was monitored during exposure to 1.0-10.0 ppm hydrogen cyanide gas. Formation of dicyanocobinamide yielded a peak at 583 nm with a simultaneous decrease in reflectance from 450-500 nm. Spectral changes were monitored as a function of time at several relative humidity values: 25, 50, and 85% relative humidity. With either cellulose or glass fiber papers, spectral changes occurred within 10 s of exposure to 5.0 ppm hydrogen cyanide gas (NIOSH recommended short-term exposure limit). We conclude that this sensor could provide a real-time end-of-service-life alert to a respirator user. [Description provided by NIOSH]
• Subjects:
  Demography Metals Mining Morbidity Mortality Occupational Health Safety Surveys And Questionnaires
• Keywords:
  Author Keywords: Paper Sensor Cobinamide Diffuse Reflectance End-of-service-life Indicator Exposure-levels Humidity Hydrogen Cyanide Monitoring-systems Monitors Optical Sensor Respirators Respiratory-gas-analysis Respiratory-gases Respiratory-protection Respiratory-protective-equipment

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• ISSN:
  0925-4005
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  California ; OSHA Region 3 ; OSHA Region 9 ; Pennsylvania ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  NPPTL - National Personal Protective Technology Laboratory
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  379-385
• Volume:
  221
• NIOSHTIC Number:
  nn:20046505
• Citation:
  Sens Actuators B Chem 2015 Dec; 221:379-385
• Contact Point Address:
  Lee A. Greenwald, National Institute for Occupational Safety and Health, National Personal Protective Technology Laboratory (CDC/NIOSH/NPPTL), 1095 Willowdale Road, Morgantown; WV 26505
• Email:
  ilv1@cdc.gov
• CAS Registry Number:
  Hydrogen cyanide (CAS RN 74-90-8)
• Federal Fiscal Year:
  2016
• Peer Reviewed:
  True
• Source Full Name:
  Sensors and Actuators B: Chemical
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:1239f03757165d855a8e61975aaf90d552a5bb88d4403907c394ac440259f3c79bffd9247160b3783294f4d04cdc6cddee208e16e388dc2727cfb77606176b4c
• Download URL:
  https://stacks.cdc.gov/view/cdc/201548/cdc_201548_DS1.pdf
• File Type:
  [PDF - 991.63 KB ]