PARTITION-COEFFICIENTS FOR FATTY-ACID ESTERS IN SUPERCRITICAL FLUID CO2 WITH AND WITHOUT ETHANOL

被引：46

作者：

NILSSON, WB ^{[1
]}

SEABORN, GT ^{[1
]}

HUDSON, JK ^{[1
]}

机构：

[1] NOAA,NATL MARINE FISHERIES SERV,DEPT COMMERCE,SE FISHERIES CTR,CHARLESTON LAB,CHARLESTON,SC 29422

来源：

JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY | 1992年 / 69卷 / 04期

关键词：

COSOLVENT; ETHANOL; FATTY ACID ESTERS; FISH OIL; PARTITION COEFFICIENTS; SUPERCRITICAL FLUID CARBON DIOXIDE;

D O I：

10.1007/BF02636055

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The complex nature of fish oils was exploited to study the dependence of structural factors upon fatty acid ester solubility in supercritical fluid carbon dioxide (SCF-CO2). Partition coefficients were determined for a number of components present in two mixtures of fatty acid ethyl esters derived from menhaden oil in SCF-CO2 at 60-degrees-C and 125 bar. Analogous data also were obtained for SCF-CO2 with 5% (w/w) ethanol added. The addition of ethanol was found to increase partition coefficients for all species, but resulted in a decrease of fluid selectivity. Aside from the chain length of a component, both the degree and position of unsaturation were found to be structural factors that affect the value of the partition coefficient.

引用

页码：305 / 308

页数：4

共 23 条

[1] APPLICATION OF SPECIFIC RESPONSE FACTORS IN GAS CHROMATOGRAPHIC ANALYSIS OF METHYL ESTERS OF FATTY ACIDS WITH FLAME IONIZATION DETECTORS [J].