Method of analyzing hydrocarbon oil mixtures using gel-permeation chromatography
US5304494A · kind A · utility
6Cited by
14References
8Claims
0Family size
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Key dates
| Filing date | Apr 9, 1992 |
| Grant date | Apr 19, 1994 |
| Priority date | — |
| Expiry date | Apr 9, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N30/8603
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of analyzing a mixture of hydrocarbon oils by using gel-permeation chromatography together with infrared detection. According to the method the signals from the infrared detector are combined to form fingerprints (M) which are characteristic of the samples being analyzed and which represent the molecular size distribution of the various hydrocarbon fractions in the samples. Then, the fingerprints are combined either to determine the concentration and the fingerprints of an unknown oil present in a mixture of two oils, or else the concentrations of n known oils in a mixture of the n oils.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.