Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Ted R. Schwartz"'
Publikováno v:
Handbook of Trace Evidence Analysis
Autor:
Donald E. Tillitt, Carl E. Orazio, Lisa L. Williams, Kathy R. Echols, Ted R. Schwartz, James N. Huckins, Jimmie D. Petty, Robert W. Gale, John C. Meadows, Douglas Morse
Publikováno v:
Environmental Science & Technology. 34:4095-4102
Three techniques of assessing bioavailable polychlorinated biphenyls (PCBs) in the Saginaw River, MI, were compared: sediments, caged fish, and semipermeable membrane devices (SPMDs). SPMDs and caged fish were placed in the river for 28 days at five
Publikováno v:
Environmental Toxicology and Chemistry. 19:1348-1359
Polycyclic aromatic hydrocarbons (PAHs) and planar halogenated hydrocarbons (PHHs), including polychlorinated dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDFs), and biphenyls (PCBs) were determined in fractionated sediment extracts from the Hudson-Rar
Autor:
Donald E. Tillitt, Kathy R. Echols, Robert W. Gale, Jerome W. O'Laughlin, Kevin P. Feltz, Ted R. Schwartz
Publikováno v:
Journal of Chromatography A. 811:135-144
A porous graphitic carbon column (Hypercarb) was used for the fractionation of polychlorinated biphenyls (PCBs) into classes of 2-4 ortho chlorines, 1 ortho chlorine and 0 ortho chlorine congeners. A method was developed that combined the fractionati
Publikováno v:
Environmental Toxicology and Chemistry. 16:1590-1597
The Ah (aryl-hydrocarbon) hydroxylase-receptor active polychlorinated biphenyls (PCBs), polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) were fractionated by an automated high-performance liquid chromatography (HPLC
Autor:
Lisa L. Williams, Robert W. Gale, Donald E. Tillitt, Jimmie D. Petty, James N. Huckins, Paul H. Peterman, Douglas Morse, Ted R. Schwartz
Publikováno v:
Environmental Science & Technology. 31:178-187
Elevated concentrations of planar, halogenated hydrocarbons have been linked to reproductive problems in a variety of fish-eating birds and mammals in the Great Lakes and in particular Saginaw Bay. Currently, there are no accurate procedures to asses
Publikováno v:
Environmental sciencetechnology. 28(4)
We determined polychlorinated biphenyls (PCBs) in emergent mayflies (Hexagenia bilineata) from a 1250-km reach of the upper Mississippi River (UMR). Total PCB concentrations (sum of 125 congeners) ranged from 0.21 to 4.1 μg/g of dry weight (1.2-29
Autor:
Hallett J. Harris, Paul D. Jones, Cynthia Hagley, John P. Giesy, Donald E. Tillitt, Ted R. Schwartz, Gerald T. Ankley, Gerald J. Niemi, Keith B. Lodge, Donald L. Beaver
Publikováno v:
Archives of Environmental Contamination and Toxicology. 24:332-344
The uptake of persistent polychlorinated hydrocarbons (PCHs) by four avian species was investigated at upper trophic levels of two aquatic food chains of the lower Fox River and Green Bay, Wisconsin. Accumulation of total and specific planar polychlo
Publikováno v:
Chemosphere. 26:1443-1460
High resolution capillary gas chromatography (GC) is the best known technique for the separation of complex mixtures; however, no single GC column has yet separated all 209 congeners of polychlorinated biphenyls (PCBs). A number of coeluting PCB cong
Publikováno v:
Journal of Great Lakes Research. 19:752-765
Eggs taken from lake trout (Salvelinus namaycush) captured from various Great Lakes between 1979 and 1988 were analyzed for individual polychlorinated biphenyl (PCB) congeners. Eggs from the same fish had been previously reared through hatching and e