DETERMINATION OF ASPHALT MOLECULAR. WEIGHT DISTRIBUTIONS BY GEL PERMEATION CHROMATOGRAPHY

THE DIRECT DETERMINATION OF ASPHALT MOLECULAR WEIGHT DISTRBUTIONS BY GEL PERMEATION CHROMATOGRAPHY (WITHOUT OBTAINING INDEPENDENT MOLECULAR WEIGHTS ON SEPARATED FRACTIONS) PRESENTS A NUMBER OF PROBLEMS WHICH APPEAR TO HAVE BEEN OVERLOOKED BY PREVIOUS WORKERS. THESE INCLUDE UNEXPECTED SOLUTION AGGREGATION EFFECTS, ADSORPTION OF ASPHALT ON THE POLYSTYRENE GEL, AND A PECULIAR DEPENDENCE OF RI OR UV RESPONSE DATA ON FRACTION MOLECULAR WEIGHT. ATTENTION TO THESE VARIOUS EFFECTS ALLOWS THE RAPID, ACCURATE DETERMINATION OF AN ASPHALT MOLECULAR WEIGHT DISTRIBUTION AT MINIMUM COST, USING HIGH EFFICIENCY GEL PERMEATION CHROMATOGRAPHY IN AN AUTOMATED UNIT. /AUTHOR/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00332700
• Supplemental Notes:
  • Vol 41, No 10, PP 1223-1227, 4 FIG, 3 TAB
• Authors:
  • Snyder, L R
• Publication Date: 1969-8

Media Info

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

Subject/Index Terms

• TRT Terms: Adsorption; Asphalt; Automation; Chromatography; Economics; Gels; Molecular weight; Permeability; Polystyrene
• Old TRIS Terms: Chromatographic analysis; Determination
• Subject Areas: Economics; Highways; Materials;

Filing Info

• Accession Number: 00211523
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 17 1970 12:00AM