Evaluation of Sorbent Sampling and Analysis Procedures for Acetone in Workplace Air: Variations of Concentration and Relative Humidity

Details

• Personal Author:
  Chisholm WP ; Harper M ; Kashon ML ; Lebouf RF ; Lee EG ; Nelson J ; Roberts J ; Soo J-C
• Description:
  This study experimentally evaluates the performance of different sorbent tubes for sampling acetone vapor in workplace air. A dynamic atmosphere system produced an acetone alone and a mixture with other analytes containing approximately 73, 483, and 1898 ug acetone mass loading at 25, 50, and 75% relative humidity (RH) at 25 degrees C. Sorbent samples were analyzed in accordance with OSHA Method 69 (Carbosieve S-III) and NMAM 1501, modified to use Anasorb 747 sorbent. Both methods were modified to include the additional analytes. Additional extraction procedures with and without 1% dimethylformamide and anhydrous magnesium sulfate were included in the modified NMAM 1501 using Anasorb 747. Silica gel sorbent tubes analyzed according to NMAM 2027 were included. There were significant reductions in the recovery of acetone from both Anasorb 747 and Carbosieve S-III collected from air at 75% RH, relative to collection at 25 or 50% RH at very low loading compared with that of samples collected at mid to high loading. Silica gel provided a consistent recovery of acetone at all RHs and in the presence of other chemical interferences at 75% RH. The likely cause of mass dependence may arise from the humidity effect on acetone adsorption onto both beaded active carbon and carbon molecular sieve either in sampling or in analysis. The present study confirms not only previous observations but also adds to the literature showing carbonaceous sorbents are not well suited for sampling ketones at high humidity and low concentration. [Description provided by NIOSH]
• Subjects:
  Acetone Environmental Monitoring Humidity Occupational Health Safety Solvents
• Keywords:
  Air Sampling Author Keywords: Acetone Beaded Active Carbon Carbon Molecular Sieve Sampling Equipment Silica Gel Sorbent Tube Sampling Vapors
• ISSN:
  2398-7308
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  Florida ; OSHA Region 3 ; OSHA Region 4 ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  HELD - Health Effects Laboratory Division ; RHD - Respiratory Health Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  96-105
• Volume:
  64
• Issue:
  1
• NIOSHTIC Number:
  nn:20057968
• Citation:
  Ann Work Expo Health 2020 Jan; 64(1):96-105
• Contact Point Address:
  Jhy-Charm Soo, Health Effects Laboratory Division, National Institute for Occupational Safety and Health (NIOSH), Centers for Disease Control and Prevention (CDC), 1095 Willowdale Road, MS 3030, Morgantown, WV 26505, USA
• Email:
  jsoo@cdc.gov
• CAS Registry Number:
  Acetone (CAS RN 67-64-1)
• Federal Fiscal Year:
  2020
• NORA Priority Area:
  Healthcare and Social Assistance
• Peer Reviewed:
  True
• Source Full Name:
  Annals of Work Exposures and Health
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:a5523e309a59afa4bee7c1c62563d6a35f7d5572d99a8e0ff854266dbe5a7e9f8bcb82e71eba8425aea3eae99cfc1b2853f57dece470fe06a11c048822df0321
• Download URL:
  https://stacks.cdc.gov/view/cdc/215167/cdc_215167_DS1.pdf
• File Type:
  [PDF - 1.20 MB ]