HIGH-RESOLUTION MASS SPECTROMETIC 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 (GREATER THAN MASS 200) WAS INDICATED WITH EXPOSURE TO ROAD CONDITIONS. IN THE HIGH MOLECULAR-WEIGHT RANGE, THE HETEROCYCLIC STRUCTURES CONTAINING OXYGEN SHOWED LARGER INCREASES THAN THE POLYNUCLEAR AROMATIC HYDROCARBONS. /TRRL/

  • Authors:
    • Schultz, J L
    • Sharkey, A G
    • Friedel, R A
  • Publication Date: 1970-4

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Filing Info

  • Accession Number: 00211319
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: TRIS
  • Created Date: Apr 17 1973 12:00AM