Chemistry: analytical and immunological testing – Lubricant – grease – mineral oil – hydrocarbon oil product – or...
Patent
1988-07-21
1989-12-26
Richman, Barry S.
Chemistry: analytical and immunological testing
Lubricant, grease, mineral oil, hydrocarbon oil product, or...
422 89, 422104, 436140, G01N 3002
Patent
active
048898139
ABSTRACT:
A process for determining the polarity of a crude oil or heavy fraction thereof in which the retention times are measured when a series of substances is contacted with a chromatographic column of crude oil, the retention times are measured when these substances are contacted with a chromatographic column of a second substance usually non-polar and the relative polarity of the oil determined from the times measured.
REFERENCES:
Ettre, L. S. "The Kovats Retention Index System", Anal. Chem. 36(8):31A-41A, 1964.
McReynolds, W. O., "Characterization of Some Liquid Phases", J. of Chromatog. Sci., 8:685-691, 1970.
Rohrschneider, L., "Die Vorausberechnung von gaschromatographischen retentionzeiten aus statistisch ermittelten `polaritaten`", J. Chromatog., 17:1-12, 1965.
Rohrschneider, L., "Eine methode zur charakterisierung von gaschromatographischen trennflussigkeiten", J. of Chromatog., 22:6-22, 1966.
Rummens, F. H. A., "Intermolecular interactions in nuclear magnetic resonance. X. A site-specific continuum model for the gas-to-liquid shifts of nonpolar solutes".
Applications to proton medium shifts and the determination of cavity radii, Can. J. Chem., 54:254-269, 1976.
McNair, H. M. and Bonelli, E. J., "Basic Gas Chromatography", pp. 72-79; 123-135, 1969.
Kosower, E. M. "Spectroscopie Ultraviolette et Mesure Empirique de la Polaritedu Solvant (Constant Z)", J. Chem. Phys., 61:230-235, 1964.
Kovats, E. "206, Gas-chromatographische charakterisierung organischer verbindungen. Teil l:Retentionsindices aliphatischer Halogenide, Alkohole, Aldehyde and Ketone", Helv. Chim. Acta, 41:1915-1932, 1958.
Fruchter Marcella Iris
Petroleo Brasileiro S.A. - Petrobras
Richman Barry S.
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