HIGH-RESOLUTION MASS SPECTROMETRIC STUDY OF WEATHERED ROAD TARS

FRACTIONS OF ROAD TARS OF COKE-OVEN AND VERTICAL RETORT ORIGIN WERE EXAMINED BY HIGH-RESOLUTION MASS SPECTROMETRY BEFORE AND AFTER EXPOSURE TO ROAD CONDITIONS. MOLECULAR FORMULAE AND RELATIVE CONCENTRATIONS WERE DETERMINED FOR ELEVEN SERIES OF PEAKS. A PROGRESSIVE INCREASE IN THE PROPORTION OF COMPONENTS OF HIGH MOLECULAR WEIGHT (MASS 200) WAS INDICATED WITH EXPOSURE TO ROAD CONDITIONS. IN THE HIGH MOLECULAR-WEIGHT RANGE, THE HETEROCYCLIC STRUCTURES CONTAINING OXYGEN SHOWED LARGER INCREASE THAN THE POLYNUCLEAR AROMATIC HYDROCARBONS. /AUTHOR/

• Supplemental Notes:
  • Vol 20, No 4, PP 126-128
• Corporate Authors:

  Academic Press Incorporated

  24-28 Oval Road
  London NW1 7DX,   England 
• Authors:
  • Shultz, J L
  • Sharkey, A G
  • Friedel, R A
• Publication Date: 1970-4

Media Info

• Serial:
  • Journal of Applied Chemistry

Subject/Index Terms

• TRT Terms: Aromatic hydrocarbons; Before and after studies; Coking; Hydrocarbons; Mass spectrometers; Molecular weight; Oxygen content; Surface course (Pavements); Tar
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00211522
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 17 1970 12:00AM