Removal of Solvents from Oil and Fat Samples

摘要

Genevac reports on special evaporative techniques for removal of solvents from oil and fat samples. Working with oils and fats can be difficult. Whether extracting and recovering additives, evaluating lipid content of foods or characterising reclaimed cooking oils before reprocessing or conversion to biofuels, oils and fats can be difficult to dry. Extraction and separation techniques, including Accelerated Solvent Extraction (ASE), Counter Current Chromatography and Dialysis, all normally present samples dissolved in an organic solvent. These samples must be dried or concentrated before analysis. Removing all the solvent can often be difficult without using very high temperatures or other harsh operating protocols which may lead to loss of more volatile fractions from the oil or fat sample.