Rapid Determination of Nitrogen Oxides with Use of Phenoldisulfonic Acid

Details

• Personal Author:
  Coulehan BA ; Lang HW
• Description:
  A rapid, quantitative batch procedure for analysis of atmospheric nitrogen oxide samples (NO + NO2, commonly referred to as NOx) from mines, tunnels, and raw or dilute diesel exhaust is described. This modification of the phenoldisulfonic acid nitration procedure eliminates the time-consuming evaporation step and two transfer steps of the original procedure. Samples are collected in evacuated bottles containing an absorbent solution and hydrogen peroxide to completely oxidize the gas-phase NOx to nitric acid. After destruction of excess oxidant, an aliquot of the absorbed sample is added to the phenoldisulfonic acid reagent in a 25-ml. volumetric flask which is used as the reaction vessel for subsequent nitration and neutralization. This modified method can double or triple the number of analyses per day by the original method. [Description provided by NIOSH]
• Subjects:
  Chemistry Chemistry, Analytic Mining Nitrogen Compounds Nitrogen Oxides Nitrous Oxide Occupational Health Safety Vehicle Emissions
• Keywords:
  Analytical-chemistry Analytical-processes Diesel-emissions Diesel-exhausts Exhaust-gases Nitrogen-compounds Nitrogen-oxides Nitrous-oxides Underground-mining
• Series:
  Mining Publications
• ISSN:
  0013-936X
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PRC - Pittsburgh Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  163-164
• Volume:
  5
• Issue:
  2
• NIOSHTIC Number:
  nn:10010500
• Citation:
  Environ Sci Technol 1971 Feb; 5(2):163-164
• Federal Fiscal Year:
  1971
• Peer Reviewed:
  True
• Source Full Name:
  Environmental Science and Technology
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:b0eea6eda48a1e8fa1bd2d5eea9d7140398247557018fe7de565d24344f147bd74c8fd77519dda5ea79c25db94de2fdb8cfd4f781f165565a2b33dd2d9fe2e95
• Download URL:
  https://stacks.cdc.gov/view/cdc/220034/cdc_220034_DS1.pdf
• File Type:
  [PDF - 267.00 KB ]