Accession Number : ADD014255

Title :   Hydrocarbon Group-Type Analyzer System.

Descriptive Note : Patent, Filed 12 Sep 88, patented 2 May 89,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Hayes, Paul C , Jr ; Anderson, Steven D

Report Date : 02 May 1989

Pagination or Media Count : 8

Abstract : This invention concerns analysis by high performance liquid chromatography (HPLC) of crude oils and petroleum products. In one embodiment of the invention a sample is quantitatively separated into saturates, alkyl benzenes and polynuclear aromatics using a system comprising a column packed with a porous silica packing material having a polar amino-cyano bonded phase in tandem with a column packed with a tetranitorfluorenimino packing material, and a dielectric constant detector. In another embodiment of the invention a sample is qualitatively separated into saturates, olefins, and total aromatics using a system employing an olefin-selective column and a dielectric constant detector. Patents. (aw)

Descriptors :   *AROMATIC COMPOUNDS, *BENZENE, *CRUDE OIL, *LIQUID CHROMATOGRAPHY, *PATENTS, *PETROLEUM PRODUCTS, ALKYL RADICALS, CONSTANTS, DETECTORS, DIELECTRIC PROPERTIES, HIGH RESOLUTION, PACKING MATERIALS, POROUS MATERIALS, SILICON DIOXIDE, SEPARATION, QUANTITATIVE ANALYSIS, QUALITATIVE ANALYSIS, AMINES, CYANIDES, OLEFIN POLYMERS, SATURATION

Subject Categories : Geology, Geochemistry and Mineralogy
      Organic Chemistry
      Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE