The Determination of Polychlorinated Biphenyl in Small Samples of Monkey Milk and Tissues. II. Extraction Efficiency

摘要

The extraction eficiency of benzene, toluene, dichloromethane, acetone: hexane and chloroform:methanol with respect to lipids and polychlorinated biphenyls was investigated using small samples of monkey adipose tissue, liver, kidney, brain, skin, feces and milk. The most efficient solvents were: acetone:hexane and chloroform:methanol for brain, feces, kidney, liver and milk; acetone: hexane and dichloromethane for adipose tissue; acetone:hexane and toluene for blood and dichloromethane for skin tissue. Within these solvent pairs acetone:hexane was the most outstanding with respect to an average of 90 PCB recoveries from fortified samples in the range of 0.02-2 ppm.