William T Foreman (Former Employee)
Science and Products
Filter Total Items: 72
Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; determination of chlorinated pesticides in aquatic tissue by capillary-column gas chromatography with electron-capture detection Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; determination of chlorinated pesticides in aquatic tissue by capillary-column gas chromatography with electron-capture detection
A method for the determination of chlorinated organic compounds in aquatic tissue by dual capillary-column gas chromatography with electron-capture detection is described. Whole-body-fish or corbicula tissue is homogenized, Soxhlet extracted, lipid removed by gel permeation chromatography, and fractionated using alumina/silica adsorption chromatography. The extracts are analyzed by...
Authors
Thomas J. Leiker, James E. Madsen, Jeffrey R. Deacon, William T. Foreman
Homestead Valley, California, aftershocks (March 17-18, 1979) recorded on portable seismographs Homestead Valley, California, aftershocks (March 17-18, 1979) recorded on portable seismographs
On March 15, 1979, four moderate earthquakes (ML 4.9, 5.3, 4.5, 4.8) occurred in the Homestead Valley area of the Mojave Desert (Figure 1). At that time, they were noteworthy for a vigorous aftershock sequence and for off-fault epicentral locations that formed a cruciform pattern (Hutton, et al., 1980; Stein and Lisowski, 1983). More recently, there is renewed interest in the Homestead...
Authors
Sue Perry-Huston, Donna Eberhart-Phillips
Determination of dissolved-phase pesticides in surface water from the Yakima River basin, Washington, using the Goulden large-sample extractor and gas chromatography/mass spectrometer Determination of dissolved-phase pesticides in surface water from the Yakima River basin, Washington, using the Goulden large-sample extractor and gas chromatography/mass spectrometer
Concentrations of pesticides in the dissolved phase of surface water samples from the Yakima River basin, WA, were determined using preconcentration in the Goulden large-sample extractor (GLSE) and gas chromatography/mass spectrometry (GC/MS) analysis. Sample volumes ranging from 10 to 120 L were processed with the GLSE, and the results from the large-sample analyses were compared to...
Authors
Gregory D. Foster, Paul M. Gates, William T. Foreman, Stuart W. McKenzie, Frank A. Rinella
Methods of analysis by the U. S. Geological Survey National Water Quality Laboratory-Determination of organonitrogen herbicides in water by solid-phase extraction and capillary-column gas chromatography/mass spectrometry with selected-ion monitoring Methods of analysis by the U. S. Geological Survey National Water Quality Laboratory-Determination of organonitrogen herbicides in water by solid-phase extraction and capillary-column gas chromatography/mass spectrometry with selected-ion monitoring
A method for the isolation of organonitrogen herbicides from natural water samples using solid-phase extraction and analysis by capillary-column gas chromatography/mass spectrometry with selected-ion monitoring is described. Water samples are filtered to remove suspended particulate matter and then are pumped through disposable solid-phase extraction cartridges containing octadecyl...
Authors
Mark W. Sandstrom, Duane S. Wydoski, Michael P. Schroeder, Jana L. Zamboni, William T. Foreman
Analytical interferences of mercuric chloride preservative in environmental water samples: Determination of organic compounds isolated by continuous liquid-liquid extraction or closed-loop stripping Analytical interferences of mercuric chloride preservative in environmental water samples: Determination of organic compounds isolated by continuous liquid-liquid extraction or closed-loop stripping
Analytical interferences were observed during the determination of organic compounds in groundwater samples preserved with mercuric chloride. The nature of the interference was different depending on the analytical isolation technique employed. (1) Water samples extracted with dichloromethane by continuous liquid-liquid extraction (CLLE) and analyzed by gas chromatography/mass...
Authors
W.T. Foreman, S.D. Zaugg, L.M. Falres, M.G. Werner, T.J. Leiker, P.F. Rogerson
Performance of the goulden large-sample extractor in multiclass pesticide isolation and preconcentration from stream water Performance of the goulden large-sample extractor in multiclass pesticide isolation and preconcentration from stream water
The reliability of the Goulden large-sample extractor in preconcentrating pesticides from water was evaluated from the recoveries of 35 pesticides amended to filtered stream waters. Recoveries greater than 90% were observed for many of the pesticides in each major chemical class, but recoveries for some of the individual pesticides varied in seemingly unpredictable ways. Corrections...
Authors
G.D. Foster, W.T. Foreman, Paul M. Gates
Non-USGS Publications**
Cooter, E. J., Foreman, W. T., & Majewski, M. S. (2002). A Regional Atmospheric Fate and Transport Model for Atrazine. 2. Evaluation. A Regional Atmospheric Fate and Transport Model for Atrazine. 2. Evaluation, 36(21), 4593-4599. doi:10.1021/es011372q
Foster, G. D., Gates, P. M., Foreman, W. T., Mckenzie, S. W., & Rinella, F. A. (1993). Determination of dissolved-phase pesticides in surface water from the Yakima River Basin, Washington, using the Goulden large-sample extractor and gas chromatography/mass spectrometry. Environmental Science & Technology, 27(9), 1911-1917. doi:10.1021/es00046a021
Hinckley, D. A., Bidleman, T. F., Foreman, W. T., & Tuschall, J. R. (1990). Determination of vapor pressures for nonpolar and semipolar organic compounds from gas chromatograhic retention data. Journal of Chemical & Engineering Data, 35(3), 232-237. doi:10.1021/je00061a003
Bidleman, T., Castleberry, A., Foreman, W., Zaranski, M., & Wall, D. (1990). Petroleum hydrocarbons in the surface water of two estuaries in the Southeastern united states. Estuarine, Coastal and Shelf Science, 30(1), 91-109. doi:10.1016/0272-7714(90)90079-7
Foreman, W., Shellum, C. L., Birks, J. W., & Sievers, R. E. (1989). Supercritical Fluid Chromatography with Sulfur Chemiluminescence Detection. Journal of Chromatography A. doi:10.1016/S0021-9673(01)94939-8
Foreman, W. T., Sievers, R. E., & Wenclawiak, B. W. (1988). Supercritical fluid chromatography with redox chemiluminescence detection. Analytical and Bioanalytical Chemistry, 330(3), 231-234.
Bidleman, T., Billings, W. N., & Foreman, W. (1986). Vapor-particle partitioning of semivolatile organic compounds: estimates from field collections. Environmental Science and Technology, 20(10), 1038-1043. doi:10.1021/es00152a013
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Filter Total Items: 72
Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; determination of chlorinated pesticides in aquatic tissue by capillary-column gas chromatography with electron-capture detection Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; determination of chlorinated pesticides in aquatic tissue by capillary-column gas chromatography with electron-capture detection
A method for the determination of chlorinated organic compounds in aquatic tissue by dual capillary-column gas chromatography with electron-capture detection is described. Whole-body-fish or corbicula tissue is homogenized, Soxhlet extracted, lipid removed by gel permeation chromatography, and fractionated using alumina/silica adsorption chromatography. The extracts are analyzed by...
Authors
Thomas J. Leiker, James E. Madsen, Jeffrey R. Deacon, William T. Foreman
Homestead Valley, California, aftershocks (March 17-18, 1979) recorded on portable seismographs Homestead Valley, California, aftershocks (March 17-18, 1979) recorded on portable seismographs
On March 15, 1979, four moderate earthquakes (ML 4.9, 5.3, 4.5, 4.8) occurred in the Homestead Valley area of the Mojave Desert (Figure 1). At that time, they were noteworthy for a vigorous aftershock sequence and for off-fault epicentral locations that formed a cruciform pattern (Hutton, et al., 1980; Stein and Lisowski, 1983). More recently, there is renewed interest in the Homestead...
Authors
Sue Perry-Huston, Donna Eberhart-Phillips
Determination of dissolved-phase pesticides in surface water from the Yakima River basin, Washington, using the Goulden large-sample extractor and gas chromatography/mass spectrometer Determination of dissolved-phase pesticides in surface water from the Yakima River basin, Washington, using the Goulden large-sample extractor and gas chromatography/mass spectrometer
Concentrations of pesticides in the dissolved phase of surface water samples from the Yakima River basin, WA, were determined using preconcentration in the Goulden large-sample extractor (GLSE) and gas chromatography/mass spectrometry (GC/MS) analysis. Sample volumes ranging from 10 to 120 L were processed with the GLSE, and the results from the large-sample analyses were compared to...
Authors
Gregory D. Foster, Paul M. Gates, William T. Foreman, Stuart W. McKenzie, Frank A. Rinella
Methods of analysis by the U. S. Geological Survey National Water Quality Laboratory-Determination of organonitrogen herbicides in water by solid-phase extraction and capillary-column gas chromatography/mass spectrometry with selected-ion monitoring Methods of analysis by the U. S. Geological Survey National Water Quality Laboratory-Determination of organonitrogen herbicides in water by solid-phase extraction and capillary-column gas chromatography/mass spectrometry with selected-ion monitoring
A method for the isolation of organonitrogen herbicides from natural water samples using solid-phase extraction and analysis by capillary-column gas chromatography/mass spectrometry with selected-ion monitoring is described. Water samples are filtered to remove suspended particulate matter and then are pumped through disposable solid-phase extraction cartridges containing octadecyl...
Authors
Mark W. Sandstrom, Duane S. Wydoski, Michael P. Schroeder, Jana L. Zamboni, William T. Foreman
Analytical interferences of mercuric chloride preservative in environmental water samples: Determination of organic compounds isolated by continuous liquid-liquid extraction or closed-loop stripping Analytical interferences of mercuric chloride preservative in environmental water samples: Determination of organic compounds isolated by continuous liquid-liquid extraction or closed-loop stripping
Analytical interferences were observed during the determination of organic compounds in groundwater samples preserved with mercuric chloride. The nature of the interference was different depending on the analytical isolation technique employed. (1) Water samples extracted with dichloromethane by continuous liquid-liquid extraction (CLLE) and analyzed by gas chromatography/mass...
Authors
W.T. Foreman, S.D. Zaugg, L.M. Falres, M.G. Werner, T.J. Leiker, P.F. Rogerson
Performance of the goulden large-sample extractor in multiclass pesticide isolation and preconcentration from stream water Performance of the goulden large-sample extractor in multiclass pesticide isolation and preconcentration from stream water
The reliability of the Goulden large-sample extractor in preconcentrating pesticides from water was evaluated from the recoveries of 35 pesticides amended to filtered stream waters. Recoveries greater than 90% were observed for many of the pesticides in each major chemical class, but recoveries for some of the individual pesticides varied in seemingly unpredictable ways. Corrections...
Authors
G.D. Foster, W.T. Foreman, Paul M. Gates
Non-USGS Publications**
Cooter, E. J., Foreman, W. T., & Majewski, M. S. (2002). A Regional Atmospheric Fate and Transport Model for Atrazine. 2. Evaluation. A Regional Atmospheric Fate and Transport Model for Atrazine. 2. Evaluation, 36(21), 4593-4599. doi:10.1021/es011372q
Foster, G. D., Gates, P. M., Foreman, W. T., Mckenzie, S. W., & Rinella, F. A. (1993). Determination of dissolved-phase pesticides in surface water from the Yakima River Basin, Washington, using the Goulden large-sample extractor and gas chromatography/mass spectrometry. Environmental Science & Technology, 27(9), 1911-1917. doi:10.1021/es00046a021
Hinckley, D. A., Bidleman, T. F., Foreman, W. T., & Tuschall, J. R. (1990). Determination of vapor pressures for nonpolar and semipolar organic compounds from gas chromatograhic retention data. Journal of Chemical & Engineering Data, 35(3), 232-237. doi:10.1021/je00061a003
Bidleman, T., Castleberry, A., Foreman, W., Zaranski, M., & Wall, D. (1990). Petroleum hydrocarbons in the surface water of two estuaries in the Southeastern united states. Estuarine, Coastal and Shelf Science, 30(1), 91-109. doi:10.1016/0272-7714(90)90079-7
Foreman, W., Shellum, C. L., Birks, J. W., & Sievers, R. E. (1989). Supercritical Fluid Chromatography with Sulfur Chemiluminescence Detection. Journal of Chromatography A. doi:10.1016/S0021-9673(01)94939-8
Foreman, W. T., Sievers, R. E., & Wenclawiak, B. W. (1988). Supercritical fluid chromatography with redox chemiluminescence detection. Analytical and Bioanalytical Chemistry, 330(3), 231-234.
Bidleman, T., Billings, W. N., & Foreman, W. (1986). Vapor-particle partitioning of semivolatile organic compounds: estimates from field collections. Environmental Science and Technology, 20(10), 1038-1043. doi:10.1021/es00152a013
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.