Measuring and testing – Instrument proving or calibrating – Volume of flow – speed of flow – volume rate of flow – or mass...
Patent
1979-12-28
1981-04-21
Kreitman, Stephen A.
Measuring and testing
Instrument proving or calibrating
Volume of flow, speed of flow, volume rate of flow, or mass...
73 23, 73 231, G01N 504
Patent
active
042625203
ABSTRACT:
In chromatography, the weight percent of higher boiling hydrocarbons is estimated by comparing areas under the certain segments of chromatograms. This procedure is subject to both human and equipment errors. A supplemental procedure for measuring the percent of higher boiling point hydrocarbons is disclosed. This procedure is specially related to chromatography and uses gradual heating and inert gas vaporization of the lower boiling point hydrocarbons in the sample material. In the procedure, a sample of the same hydrocarbon tested in the chromatograph is weighed and is heated to the same temperature as used in the chromatograph while flowing inert gas, e.g. helium, past the sample. After reaching this temperature, gas flow is continued for at least eight minutes. The residual sample is weighed and the difference used to determine and check the chromatograph estimation. The procedure may be checked with a calibrated sample of hydrocarbons boiling at and below the final maximum test temperature. The procedure may be performed simultaneously on both the unknown sample and the calibrated sample.
REFERENCES:
patent: 3204448 (1965-09-01), Thorburn et al.
patent: 4057995 (1977-11-01), Kleiss
Atlantic Richfield Company
Folzenlogen M. David
Kreitman Stephen A.
LandOfFree
Supplemental weight percent analysis for chromatography does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Supplemental weight percent analysis for chromatography, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Supplemental weight percent analysis for chromatography will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-551931