Simultaneous determination of pcbs and triglycerides in a model fat sample using selective supercritical fluid extraction

This work presents an extraction method, which selectively extracts PCBs and triglycerides from a model fat sample containing PCBs, triglycerides, and phospholipids. All model fat sample constituents were added to the same cell, and by using alumina, PCBs were quantitatively extracted with little co-extraction of interfering triglycerides. In a subsequent step, triglycerides could be selectively extracted by the addition of 4% methanol as modifier. Phospholipids were not extracted even after the addition of 10% methanol.