Subsequent Extraction of Organic Matter from Peat Swamp Soil by Organic Solvents

Study of substances dissolved in various solvents and extraction organic material extracted from organic soils like peat and swamps is one of the most important discussions in the field of organic chemistry. In this article, the application of Subsequent Extraction Method to study of the extracted substances in the organic solvents and the interaction with organic solvents has been studied. To achieve this goal, firstly, soil samples which consist organic matter have been collected from a swamp in Golestan province and then 4 types of organic solvent, Diethyl Ether, Ethanol, Dioxane, and Hexane were chosen as a solvent and were used respectively. To investigate the changes of solvents and determining the functional groups, FTIR was used in each phase of extraction. Results showed some compounds like lignin, fats, waxes, lipids, carbohydrates, and phenols are present in all phases but compounds such as clay, aldehydes, esters, humic acids, proteins, polysaccharides, and cellulose are shown in particular phases.