INVERSE GAS-LIQUID CHROMATOGRAPHY, A NEW APPROACH FOR STUDYING PETROLEUM ASPHALTS

A NEW APPROACH TO THE CHARACTERIZATION OF ASPHALT IS DESCRIBED IN WHICH THE ASPHALT SERVES AS THE LIQUID SUBSTRATE IN AN UNSUAL APPLICATION OF GAS LIQUID CHROMATOGRAPHY /GLC/. THE TERM INVERSE GLC HAS BEEN APPLIED TO DIFFERENTIATE THIS TECHNIQUE FROM CONVENTIONAL GLC. IN THE TECHNIQUE, THE ASPHALT ON THE COLUMN IS CHARACTERIZED BY MEASURING THE CORRECTED RETENTION VOLUMES OF A SERIES OF SELECTED TEST COMPOUNDS WITH DIFFERENT FUNCTIONAL GROUPS. THE RETENTION DATA ARE QUANTIFIED BY REFERENCING TO THE BEHAVIOR OF N-PARAFFINS ON THE ASPHALT COLUMN. THE RETENTION BEHAVIOR OF EACH TEST COMPOUND DEPENDS ON INTERACTIONS WITH FUNCTIONALITY IN THE ASPHALT AND THUS IS RELATED TO THE CHEMICAL COMPOSITION OF THE ASPHALT. THE NEW TECHNIQUE WAS FOUND TO BE USEFUL IN SHOWING DIFFERENCES AMONG ASPHALTS AND HOLDS PROMISE AS A METHOD OF STUDYING ASPHALT COMPOSITION AND SHOWING CHEMICAL CHANGES WHICH OCCUR ON OXIDATION AND WEATHERING. /AUTHOR/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00332700
• Supplemental Notes:
  • Vol 38, No 2, PP 241-243, 1 FIG, 4 TAB, 6 REF
• Authors:
  • Davis, T C
  • Petersen, J C
  • Haines, W E
• Publication Date: 1966-2

Media Info

• Serial:
  • Analytical Chemistry
  • Publisher: American Chemical Society
  • ISSN: 0033-2700

Subject/Index Terms

• TRT Terms: Asphalt; Chemical composition; Chemical properties; Gas chromatography; Liquid asphalt; Malthene; Materials selection; Oxidation; Paraffin; Retaining walls; Volume; Weathering
• Old TRIS Terms: Inverse; Petrolene component /asphalt/; Retaining
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00210627
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 23 1994 12:00AM