title: Improved Storherr tube for assisted and sweep co-distillation cleanup of pesticides, polychlorinated biphenyls, and pentachlorophenol from animal fats.
abstract: A procedure is presented for the simultaneous extraction from animal fat and quantitation of 15 pesticide residues, 4 polychlorinated biphenyl (PCB) formulations, and pentachlorophenol (PCP). Silanization of the Storherr tube packing reduces thermal decomposition and allows for residue recoveries in excess of 88% from pork, beef, chicken, sheep, and rabbit fat. This Storherr tube performs well in either the assisted distillation or sweep co-distillation mode of operation. Detection limits of 2-5 ppb for the pesticides and 10 ppb for the PCBs are readily attained.
mesh_terms: D000273:Adipose Tissue / Q000032:analysis*; D000818:Animals; D002417:Cattle; D002645:Chickens; D002733:Chlorophenols / Q000032:analysis*; D005504:Food Analysis / Q000295:instrumentation; D010416:Pentachlorophenol / Q000032:analysis*; D010573:Pesticide Residues / Q000032:analysis*; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D011817:Rabbits; D012756:Sheep; D013552:Swine
chemical_list: D002733:Chlorophenols; D010573:Pesticide Residues; D010416:Pentachlorophenol; D011078:Polychlorinated Biphenyls