A New Passive Sampler for Regulated Workplace Aldehydes

Details

• Personal Author:
  Que Hee S ; Tsai S-W
• Description:
  A new solid sorbent passive air sampler for aldehydes had a silicone membrane atop a cylindrical diffusion path of 1.1 cm length and 1.3 cm diameter above a 10 percent (w/w) O-(2,3,4,5,6-pentafluorobenzyl)hydroxylamine hydrochloride (PFBHA) Tenax TA pellet. Known vapor concentrations of Occupational Safety and Health Administration (OSHA)-regulated aldehydes near their permissible exposure limits were generated from a syringe pump dynamic air dilution system that was connected to an exposure chamber. The O-oxime derivatives from aldehyde reaction with PFBHA were desorbed with hexane, and quantified by capillary gas chromatography/mass spectrometry (GC/MS) or gas chromatography/electron capture detection (GC/ECD). The capacity for aldehydes with one carbonyl group was 30-35 mumoles, and 15 mumoles for the dialdehyde, glutaraldehyde. The experimental sampling rates in mL/min were 8.86 +/- 0.38, acetaldehyde; 11.69 +/- 0.32, chloroacetaldehyde; 7.85 +/- 0.19, crotonaldehyde; 9.97 +/- 0.10, formaldehyde; 6.47 +/- 0.42, furfural; and 4.46 +/- 0.15, glutaraldehyde. Other data on valeraldehyde and acrolein have shown that the sampling constants were independent of face velocity between 0.1 to 0.35 m/s (20 to 70 fpm), temperatures between 9 to 48 degrees C, RH between 3 to 79 percent, and intermittent sampling exposure pattern. [Description provided by NIOSH]
• Subjects:
  Aldehydes Environmental Monitoring Formaldehyde Mass Spectrometry Occupational Health Safety Workplace
• Keywords:
  Air-sampling Air-sampling-techniques Aldehyde Aldehyde Oxime Author Keywords: Adsorption Exposure-limits Gas-chromatography Gas Chromatography Mass-spectrometry Passive Sampler Personal Sampling Sampling-methods Workplace-monitoring

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• ISSN:
  1047-322X
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  California ; OSHA Region 9
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  255-262
• Volume:
  14
• Issue:
  4
• NIOSHTIC Number:
  nn:20024502
• Citation:
  Appl Occup Environ Hyg 1999 Apr; 14(4):255-262
• Contact Point Address:
  Shih-Wei Tsai, Department of Environmental Health Sciences and Center for Occupational and Environmental Health, School of Public Health, University of California at Los Angeles, Los Angeles, California
• CAS Registry Number:
  Acetaldehyde (CAS RN 75-07-0) ; Chloroacetaldehyde (CAS RN 107-20-0) ; Crotonaldehyde (CAS RN 4170-30-3) ; Formaldehyde (CAS RN 50-00-0) ; Furfural (CAS RN 98-01-1) ; Glutaraldehyde (CAS RN 111-30-8) ; Hydroxyamine hydrochloride (CAS RN 5470-11-1)
• Federal Fiscal Year:
  1999
• NORA Priority Area:
  Research Tools and Approaches: Exposure Assessment Methods
• Performing Organization:
  University of California Los Angeles, Los Angeles, CA
• Peer Reviewed:
  True
• Start Date:
  19950901
• Source Full Name:
  Applied Occupational and Environmental Hygiene
• End Date:
  19990831
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:bbf2482bb768e78db64ba19bae2e32b4999c2212f5a357e400ff4bcaa75593f6db830b50e2dc5d7293a38729f1c7d0c54087f5b9455fa77fb6ee50399a0f0396
• Download URL:
  https://stacks.cdc.gov/view/cdc/196275/cdc_196275_DS1.pdf
• File Type:
  [PDF - 348.95 KB ]