Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Content or effect of a constituent of a liquid mixture
Patent
1982-08-31
1984-10-16
Goldberg, Gerald
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
Content or effect of a constituent of a liquid mixture
210656, G01N 3108
Patent
active
044767137
ABSTRACT:
There is disclosed a method for the separation and identification of components contained in hydrocarbon mixtures, such as paraffins, olefins, napthenes and/or aromatics, by liquid chromatography by use of a chromatographic column packed with a microparticulate material having a pore size of less than about 500 .ANG. and possessing aromaticity, preferably polystyrene/divinyl benzene having a pore size of less than about 100 .ANG., the microparticulate material being slurry packed in a solvent medium. The hydrocarbon mixture is passed through the packed column using a mobile phase comprising a solvent having a solvent strength parameter, .epsilon..degree., of less than about 0.1 such as a C.sub.5 to C.sub.8 alkane; and the paraffins, olefins, napthenes, and/or aromatics are separately eluted and identified. Also disclosed is an apparatus for the characterization and separation of paraffins, olefins, napthenes, and aromatics contained in hydrocarbon mixtures, the apparatus comprising: a chromatographic column packed with a microparticulate material having a pore size of less than about 500 .ANG. and possessing aromaticity, and slurry packed in a solvent medium; an injector for injecting a sample of the hydrocarbon mixture into said column; a solvent reservoir and pump to provide a mobile phase to the column comprising a solvent having a solvent strength parameter, .epsilon..degree., of less than about 0.1 such as a C.sub.5 to C.sub.8 alkane; and a detector to detect and identify the paraffins, olefins, napthenes, and aromatics as they are eluted from the column.
REFERENCES:
patent: 3966596 (1976-06-01), Stevens et al.
Alfredson, Thomas V., "High-Performance Liquid Chromatographic Column Switching Techniques for Rapid Hydrocarbon Group-Type Separations"; Journal of Chromatography, 218 (1981) pp. 715-728.
Matsunaga, A. et al., "Separation of Aromatic Compounds in Lubricant Base Oils by High Performance Liquid Chromatography"; Analytical Chemistry, vol. 50, No. 6, May 1978, pp. 753-756.
Mori, Sadao, "Elution Behavior of Some Solutes on a Porous Polystyrene Gel in High Performance Liquid Chromatography"; Analytical Chemistry, vol. 50, No. 6, May 1978, pp. 745-748.
Mori, S. et al., "Combination of Size Exclusion and Normal-Phase Partition Modes in High Performance Liquid Chromatography"; Analytical Chemistry, vol. 51, No. 3, Mar. 1979, pp. 382-384.
Hewlett Packard Newsletter, "High Performance Chromatography"; Avondale Division; Rt. 41; Avondale, PA 19311; vol. 3, No. 3, Jun. 1982.
Majors, Ronald E., "Recent Advances in High Performance Liquid Chromatography Packings and Columns"; Journal of Chromatographic Science, vol. 15, Sep. 1977, pp. 333-351.
Majors et al., Journal of Chromotography, 167 (1978), pp. 17-30.
Cole Stanley Z.
Goldberg Gerald
Roskos Joseph W.
Varian Associates Inc.
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