Determination of solubility parameters and thermodynamic properties in hydrocarbon-solvent systems by gas chromatography
Gas chromatography used to calculate the specific retention volume of several hydrocarbons in different chromatographic liquid phases (Squalane, Carbowax-400, Carbowax-1500, Carbowax-4000, Amine-220, Dinonyl phthalate, Tributyl phosphate and Trixylenyl phosphate). Some thermodynamic parameters, such...
| Authors: | , , , , |
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| Format: | article |
| Publication Date: | 2007 |
| Country: | España |
| Institution: | Universidad de Oviedo (UNIOVI) |
| Repository: | RUO. Repositorio Institucional de la Universidad de Oviedo |
| Language: | English |
| OAI Identifier: | oai:digibuo.uniovi.es:10651/29242 |
| Online Access: | http://hdl.handle.net/10651/29242 https://dx.doi.org/10.1590/S0104-66322007000200014 |
| Access Level: | Open access |
| Keyword: | Flory-Huggins interaction parameters Gas chromatography Polar component Solubility parameter Specific retention volume |
| Summary: | Gas chromatography used to calculate the specific retention volume of several hydrocarbons in different chromatographic liquid phases (Squalane, Carbowax-400, Carbowax-1500, Carbowax-4000, Amine-220, Dinonyl phthalate, Tributyl phosphate and Trixylenyl phosphate). Some thermodynamic parameters, such as enthalpy of sorption and Flory-Huggins parameters relating the interaction between liquid phases and solutes, were also calculated from the determined retention volumes. Liquid phase solubility parameters of Squalane, Carbowax-400, Carbowax-1500 and Carbowax-4000 at 80 °C as well as the polar and apolar components were calculated too. A new model was proposed to correlate polar contribution to the solubility parameter of a liquid phase with the specific retention volume of a solute in this liquid phase |
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