When fractionating natural and standard lipid mixtures according to the most widely used method for the analysis of soil and other environmental materials, free fatty acids (FFAs) were not recovered quantitatively in the fraction expected to contain all simple lipids. Rather than being eluted from activated silicic acid adsorption chromatographic columns with chloroform, FFAs in standard lipid ...

The greater Equisetum arvense is an herbaceous plant from the family Equisetaceae commonly found in North America, Europe and Asia. has been used since ancient times medical practice because of its pharmacological applications, presence many biologically active compounds, including flavonoids, alkaloids, carbohydrate, proteins amino acids, phytosterols, saponins sterols. Scientific data reveals...

Data on the normal distribution of fatty acids in the cholesterol ester fraction of rat plasma and liver and on factors which may influence their distribution are extremely limited at the present time. The information available has been obtained by alkali isomerization and silicic acid and paper chromatography techniques. These methods do not provide an adequate identification and estimation of...