RELATION BETWEEN RETENTION INDICES AND BOILING POINTS OF HYDROCARBONS DIFFERING SLIGHTLY IN THEIR VAPOR PRESSURES
Sojak, L; Hrivnak, J
| HERO ID | 4968780 |
|---|---|
| In Press | No |
| Year | 1972 |
| Title | RELATION BETWEEN RETENTION INDICES AND BOILING POINTS OF HYDROCARBONS DIFFERING SLIGHTLY IN THEIR VAPOR PRESSURES |
| Authors | Sojak, L; Hrivnak, J |
| Abstract | OBSERVATIONS WERE MADE OF THE GAS CHROMATOGRAPHIC BEHAVIOR OF A VARIETY OF HYDROCARBONS OBTAINED WITH A 200 METER OPEN TUBULAR SQUALANE COLUMN AT VARIOUS SPECIFIC TEMPERATURES. A RELATIVELY SMALL CHANGE IN COLUMN TEMPERATURE REVERSED THE RETENTION SEQUENCES OF THESE COMPOUNDS. IN ADDITION TO COLUMN TEMPERATURE, THE PROPORTIONALITY CONSTANT OF THE RELATION BETWEEN RETENTION INDICES AND BOILING POINTS FOR STRAIGHT-CHAIN ALKENES WAS A FUNCTION OF THE NUMBER OF CARBON ATOMS AND THE STRUCTURE OF THE PAIRS OF ISOMERS. MATHEMATICAL EQUATIONS EXPRESSING PRECISELY THE RETENTION BEHAVIOR OF STRAIGHT-CHAIN ALKENES SEPARATED ON SQUALANE WERE DERIVED TAKING INTO ACCOUNT THE DIFFERENCES OF THE ACTIVITY COEFFICIENTS AND THE TEMPERATURE DEPENDENCE OF VAPOR PRESSURE AND THE ACTIVITY COEFFICIENTS OF THE COMPARED ISOMERS. THE INFLUENCE OF DIFFERENT STRUCTURES OF ISOMERS ON THEIR RETENTION TIMES IS GREATER, THE SMALLER THE DIFFERENCE BETWEEN THEIR BOILING POINTS. (BYRD-BATTELLE) |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Keyword | *VAPOR PRESSURE; *ORGANIC COMPOUNDS; EQUATIONS; TEMPERATURE; GAS CHROMATOGRAPHY; WATER POLLUTION; POLLUTANT IDENTIFICATION; KINETICS; *BOILING POINT; *RETENTION INDEX; ISOMERS; ACTIVITY COEFFICIENTS; OLEFINIC HYDROCARBONS; ALKENES; ALKANES |