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Records 1 to 48 of 48

2019
Davis, M., C. Rosal, W. Henderson, B. Acrey, R. Zepp, AND J. Washington. Tentative identification of new-generation per- and polyfluoroalkyl substances in industrial products. SETAC NA Focus Meeting: Environmental Risk Assessment of PFAS, Durham, NC, August 12 - 15, 2019.
Washington, J., C. Rosal, E. Ulrich, AND T. Jenkins. Use of carbon isotopic ratios in nontargeted analysis to screen for anthropogenic compounds in complex environmental matrices. JOURNAL OF CHROMATOGRAPHY A. Elsevier Science Ltd, New York, NY, 1583:73-79, (2019). https://doi.org/10.1016/j.chroma.2018.11.013
2017
Mash, H., T. Sanan, T. Jones-Lepp, J. Morgan, C. Rosal, Jim Lazorchak, M. Elovitz, Joel Allen, J. Lu, J. Santodomingo, A. Delacruz, M. Waters, AND M. Steinitz Kannan. Overview of U.S. EPA Office of Research and Development’s research on Analysis and monitoring in fresh and coastal/estuarine environments. 2017 SETAC North America Annual Meeting, Minneapolis, MN, November 12 - 16, 2017.
2015
Ulrich, E., C. Rosal, L. McMillan, AND M. Strynar. Using LC-MS/MS in Non-Targeted Analysis of Environmental Samples. EPA Non-Targeted Analysis Workshop, RTP, NC, August 18 - 19, 2015.
Rosal, C., E. Ulrich, L. McMillan, AND M. Strynar. Workflow and Proof of Concept for Non-Targeted Analysis of Environmental Samples by LC-MS/MS. Presented at 36th SETAC North America Annual Meeting, Salt Lake City, UT, November 01 - 05, 2015.
2014
Jones-Lepp, T., W. Sovocool, Don Betowski, P. DeArmond, V. Taguchi, AND C. Rosal. Oklahoma Fish Kill Study: Looking for a Toxic Needle in an Environmental Haystack. Presented at American Society of Mass Spectrometry, Baltimore, MD, June 14 - 19, 2014.
Jones-Lepp, T., Don Betowski, C. Rosal, W. Sovocool, P. DeArmond, AND V. Taguchi. Oklahoma Fish Kill Study: Looking for a Toxic Needle in an Environmental Haystack . Presented at 62nd ASMS Conference on Mass Spectrometry and Allied Topics, Baltimore, MD, June 15 - 19, 2014.
2012
MOMPLAISIR, G., M. H. HIATT, AND C. G. ROSAL. ThP05 Biogeneration of Volatile Selenium Compounds in Biosolids/Biofuels and Quantification by VD/GC/ICPMS . Presented at 2012 Winter Conference on Plasma Spectrochemistry, Tucson, AZ, January 09 - 14, 2012.
2010
MOMPLAISIR, G., C. G. ROSAL, E. M. HEITHMAR, K. E. VARNER, L. A. RIDDICK, D. F. BRADFORD, AND N. G. TALLENT-HALSELL. Development of a Solid Phase Extraction Method for Agricultural Pesticides in Large-Volume Water Samples. Journal of Separation Science. Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, Germany, 81:1380-1386, (2010).
ROSAL, C. G. Nanometal-Oxide Sunscreen Agents by Capillary Electrophoresis-Inductively Coupled Plasma Mass Spectrometry. Presented at 2010 Winter Conference on Plasma Spectrochemistry, Fort Myers, FL, January 03 - 09, 2010.
ROSAL, C. G. Nanometal-Oxide Sunscreen Agents by Capillary Electrophoresis-Inductively Coupled Plasma Mass Spectrometry . Presented at 2010 Winter Conference on Plasma Spectrochemistry, Fort Myers, FL, January 03 - 09, 2010.
BRADFORD, D. F., E. M. HEITHMAR, N. G. TALLENT-HALSELL, G. MOMPLAISIR, C. G. ROSAL, K. E. VARNER, M. S. NASH, AND L. A. RIDDICK. Temporal Patterns and Sources of Atmospherically Deposited Pesticides in Alpine Lakes of the Sierra Nevada, California , USA. ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, 44(10):4609-4614, (2010).
ROSAL, C. G., L. D. BETOWSKI, AND E. Siska. UV Filters and Toursim: Their Impact on the Environment. Presented at 2010 International Chemical Congress of Pacific Basin Societies, Honolulu, HI, December 15 - 20, 2010.
2009
ROSAL, C. G., L. D. BETOWSKI, J. Romano, J. Neukom, D. Wesolowski, AND L. Zintek. THE DEVELOPMENT AND INTER-LABORATORY VERIFICATION OF LC-MS LIBRARIES FOR ORGANIC CHEMICALS OF ENVIRONMENTAL CONCERN. TALANTA. Elsevier Science Ltd, New York, NY, 79:810-817, (2009).
BRADFORD, D. F., N. G. TALLENT-HALSELL, E. M. HEITHMAR, G. MOMPLAISIR, C. G. ROSAL, M. S. NASH, K. E. VARNER, AND L. A. RIDDICK. Temporal and Spatial Patterns of Airborne Contaminants Relative to Amphibian Population in Sequoia and Kings Canyon National Parks, California. Presented at Sierra Nevada - Southern Cascades Contaminants Workshop, Three Rivers, CA, April 08 - 09, 2009.
2008
ROSAL, C. G. AND L. D. BETOWSKI. Parabens and Sunscreens in the Environment: Determination by HPLC-ESI-MS/MS and GC-MS and Calculation of Phototoxicity. Presented at 56th American Society of Mass Spectrometry, Denver, CO, June 01 - 05, 2008.
ROSAL, C. G. AND L. D. BETOWSKI. Sunscreen Agents in the Environment: Determination by HPLC-ESI-MS/MS and GC-MS and Calculation of Phototoxicity. Presented at Western Regional Conference of the American Chemical Society, Las Vegas, NV, September 24, 2008.
BRADFORD, D. F., E. M. HEITHMAR, N. G. TALLENT-HALSELL, G. MOMPLAISIR, C. G. ROSAL, K. E. VARNER, L. A. RIDDICK, AND M. S. NASH. Temporal Patterns of Airborne Pesticides in Alpine Lakes of the Sierra Nevada, California. Presented at Society for Environmental Toxicology and Chemistry, Tampa, FL, November 16 - 20, 2008.
2007
BRADFORD, D. F., E. M. HEITHMAR, L. MCCONNELL, G. MOMPLAISIR, L. A. RIDDICK, C. G. ROSAL, S. SIMONICH, D. SPARLING, K. STANLEY, N. G. TALLENT-HALSELL, AND K. E. VARNER. AIRBORNE PESTICIDES AND POPULATION DECLINES OF A CALIFORNIA ALPINE FROG. Presented at Environmental Biology Seminar, Las Vegas, NV, February 14, 2007.
HEITHMAR, E. M., G. MOMPLAISIR, AND C. G. ROSAL. COMPLEMENTARY APPROACHES TO THE DETERMINATION OF ARSENIC SPECIES RELEVANT TO CONCENTRATED ANIMAL FEEDING OPERATIONS. Presented at National Environmental Monitoring Conference, Cambridge, MA, August 20, 2007.
ROSAL, C. G. AND G. MOMPLAISIR. DETERMINATION ROXARSONE AND ITS TRANSFORMATION PRODUCTS USING CAPILLARY ELECTROPHORESIS COUPLED TO ICP-MS. IN: Determination Roxarsone and Its Transformation Products Using Capillary Electrophoresis Coupled to ICP-MS, Agilent Technologies, Santa Clara, CA, 1(1):53-54, (2007).
ROSAL, C. G. EMERGING CONTAMINANTS: AN OVERVIEW OF ON-GOING RESEARCH. Presented at 17th Annual Quality Assurance Conference, Dallas, TX, October 15 - 19, 2007.
ROSAL, C. G. EMERGING CONTAMINANTS: AN OVERVIEW OF ON-GOING RESEARCH. Presented at 17th Annual Quality Assurance Conference, Dallas, TX, October 15 - 19, 2007.
BRADFORD, D. F., E. M. HEITHMAR, K. STANLEY, L. MCCONNELL, D. SPARLING, S. SIMONICH, N. G. TALLENT-HALSELL, G. MOMPLAISIR, C. G. ROSAL, L. A. RIDDICK, AND K. E. VARNER. TEMPORAL AND SPATIAL PATTERNS OF AIRBORNE PESTICIDES IN THE ALPINE ENVIRONMENT OF A DECLINING CALIFORNIA AMPHIBIAN, THE MOUNTAIN YELLOW-LEGGED FROG. Presented at Understanding Agriculture's Effects on Amphibians and Reptiles in a Changing World, St. Louis, MO, February 06 - 08, 2007.
BRADFORD, D. F., E. M. HEITHMAR, N. G. TALLENT-HALSELL, G. MOMPLAISIR, C. G. ROSAL, L. A. RIDDICK, AND K. E. VARNER. TEMPORAL PATTERNS OF AIRBORNE PESTICIDES IN THE HABITATE OF THE MOUNTAIN YELLOW-LEGGED FROG IN THE SOUTHERN SIERRA NEVADA. Presented at Annual Meeting of California-Nevada Amphibian Populations Task Force, Las Vegas, NV, January 18 - 20, 2007.
2006
ROSAL, C. G., G. MOMPLAISIR, AND E. M. HEITHMAR. DETERMINATION OF ORGANOPHOSPHORUS COMPOUNDS BY GC-ICPMS. Presented at 2006 Winter Conference on Plasma Spectrochemistry, Tucson, AZ, January 08 - 14, 2006.
BRADFORD, D. F., E. M. HEITHMAR, G. MOMPLAISIR, C. G. ROSAL, N. G. TALLENT-HALSELL, L. A. RIDDICK, AND K. E. VARNER. TEMPORAL VARIATION IN PESTICIDE LEVELS IN SURFACE WATERS OF THE SOUTHERN NEVADA, CALIFORNIA. Presented at Workshop: Knowledge, Uncertainties and Research Needs in Evaluationg the Role of Pesticides in Amphibian Population Declines in California and Globally, Society for Conservation Biology, San Jose, CA, June 24, 2006.
2005
ROSAL, C. G. AND G. MOMPLAISIR. DETERMINATION OF PESTICIDE RESIDUES IN BIOLOGICAL EXTRACTS BY RETENTION TIME LOCKING CAPILLARY GAS CHROMATOGRAPHY MASS SPECTROMETRY. Presented at 28th International Symposium on Capillary Chromatography and Electrophoresis, Las Vegas, NV, May 22 - 25, 2005.
Rosal, C G., G M. Momplaisir, AND E M. Heithmar. ROXARSONE AND TRANSFORMATION PRODUCTS IN CHICKEN MANURE: DETERMINATION BY CAPILLARY ELECTROPHORESIS-INDUCTIVELY COUPLES PLASMA MASS SPECTROMERTY. ELECTROPHORESIS. Wiley-VCH, Weinheim, Germany, 26(7-8):1606-1614, (2005).
2004
Heithmar, E M., G M. Momplaisir, AND C G. Rosal. ELEMENTAL SPECIATION FOR RISK MANAGEMENT DECISIONS. Presented at Hazardous Substance Research Centers (HSRC) Workshop, Las Vegas, NV, November 5, 2004.
MOMPLAISIR, G., C. G. ROSAL, AND ED HEITHMAR. JUDGING PUBLIC RISK - NOT ALL ARSENICS ARE CREATED EQUAL. Presented at US EPA ESD Open House, Las Vegas, NV, December 09, 2004.
2003
Rosal, C G., L A. Riddick, E M. Heithmar, G M. Momplaisir, K E. Varner, P. L. Ferguson, D F. Bradford, AND N G. TallentHalsell. ANALYSIS OF LOW-LEVEL PESTICIDES FROM HIGH-ELEVATION LAKE WATERS BY LARGE VOLUME INJECTION GCMS. Presented at Pittsburg Conference 2003, Orlando, FL, March 13, 2003.
Rosal, C G., L A. Riddick, E M. Heithmar, G M. Momplaisir, K E. Varner, P. L. Ferguson, D F. Bradford, AND N G. TallentHalsell. ANALYSIS OF LOW-LEVEL PESTICIDES FROM HIGH-ELEVATION LAKE WATERS BY LARGE-VOLUME INJECTION GCMS. Presented at Pittsburgh Confernece on Anlytical Chemistry and Applied Spectroscopy 2003, Orlando, FL, March 9-14, 2003.
Momplaisir, G M., K E. Varner, E M. Heithmar, C G. Rosal, L A. Riddick, P. L. Ferguson, B. Gentry, D F. Bradford, AND N G. TallentHalsell. DETERMINATION OF ULTRATRACE CONCENTRATIONS OF AGRICULTURAL PESTICIDES IN WATER USING SOLID-PHASE EXTRACTION AND ANALYSIS BY GC/MS. Presented at Pittsburgh Conference on Analytical Chemistry and Applied Spectrometry, Orlando, FL, March 9-14, 2003.
Rosal, C G., L A. Riddick, G M. Momplaisir, E M. Heithmar, AND K E. Varner. PULSED SPLITLESS AND LARGE-VOLUME INJECTION IN CAPILLARY GAS CHROMATOGRAPHY MASS SPECTROMETRY FOR THE DETERMINATION OF ULTRA-TRACE LEVEL PESTICIDE RESIDUES. Presented at National Environmental Monitoring Conference 2003, Arlington, VA, July 21-24, 2003.
Varner, K E., G M. Momplaisir, N G. TallentHalsell, D F. Bradford, P. L. Ferguson, L A. Riddick, C G. Rosal, AND E M. Heithmar. THE CHALLENGE OF ACQUIRING ALPINE LARGE VOLUME LAKE WATER SAMPLES FOR ULTRA TRACE LEVEL ANALYSIS. Presented at On-Site 11th International Conference, Phoenix, AZ, January 21-24, 2003.
2002
Rosal, C G., G M. Momplaisir, AND E M. Heithmar. DETERMINATION OF ROXARSONE, AN ARSENIC ANIMAL-FEED ADDITIVE, AND ITS TRANSFORMATION PRODUCTS IN CHICKEN MANURE BY CE-ICPMS AND HPLC-ICPMS. Presented at 2002 Winter Conference on Plasma Spectrochemistry, Scottsdale,, AZ, January 6-11, 2002.
Heithmar, E M., C G. Rosal, AND J V. Cizdziel. DIRECT MERCURY ANALYSIS IN ENVIRONMENTAL SOLIDS BY ICPMS WITH ON-LINE SAMPLE ASHING AND MERCURY PRE-CONCENTRATION USING THE DIRECT MERCURY ANALYZER. Presented at 2002 Winter Conference on Plasma Spectrochemistry, Scottsdale, AZ, January 6-11, 2002.
2001
Rosal, C G., G M. Momplaisir, AND E M. Heithmar. DETERMINATION OF A VETERINARY PROPHYLACTIC PHARMACEUTICAL AND ITS TRANSFORMATION PRODUCTS IN CHICKEN EXCRETA BY CAPILLARY ELECTROPHORESIS - UV AND CAPILLARY ELECTROPHORESIS - INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY. Presented at 24th International Symposium on Capillary Chromatography and Electrophoresis, Las Vegas, NV, May 20-24, 2001.
Rosal, C G., G M. Momplaisir, AND E M. Heithmar. DETERMINATION OF ROXARSONE, AN ARSENIC ANIMAL-FEED ADDITIVE. AND ITS TRANSFORMATION PRODUCTS IN CHICKEN MANURE BY CE-ICPMS AND UHPLC -ICPMS. Presented at 2002 Winter Conference on Plasma Spectrochemistry, Scottsdale, AZ, January 6-12, 2002.
Heithmar, E M., C G. Rosal, AND J V. Cizdziel. DIRECT MERCURY ANALYSIS IN ENVIRONMENTAL SOLIDS BY ICPMS WITH ON-LINE SAMPLE ASHING AND MERCURY PRECONCENTRATION USING A DIRECT MERCURY ANALYZER. Presented at Winter Conference on Plasma Spectrochemistry, Scottsdale, AZ, January 6-12, 2002.
Bradford, D F., E M. Heithmar, C L. Cross, B. Gentry, G M. Momplaisir, M S. Nash, N G. TallentHalsell, L A. Riddick, C G. Rosal, AND K E. Varner. DISTRIBUTIONS OF AIRBORNE AGRICULTURAL CONTAMINANTS RELATIVE TO AMPHIBIAN POPULATIONS IN THE SOUTHERN SIERRA NEVADA, CA. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-01/085 (NTIS PB2002-102156), 2001.
2000
Momplaisir, G M., C G. Rosal, AND E M. Heithmar. NATIONAL PARKS SAMPLES: MULTI-ELEMENT BY INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY. Presented at 2000 Winter Conference on Plasma Spectrochemistry, Ft. Lauderdale, FL, January 10-15, 2000.
Heithmar, E M., C G. Rosal, G M. Momplaisir, AND J V. Cizdziel. PERFORMANCE OF THE HIGH-EFFICIENCY NEBULIZER (HEN) AT REDUCED FLOW RATES IN AN ICPMS SYSTEM. Presented at Winter Conference on Plasma Spectrochemistry, Ft. Lauderdale, FL, January 10-15, 2000.
1999
Rosal, C G. AGENT 00BEES: SPIES IN YOUR BACKYARD. Presented at EPA-LV Research Expo, Las Vegas, NV, October 10, 1998.
1996
Borden, R. C., R. T. Goin, C. M. Kao, AND C G. Rosal. ENHANCED BIOREMEDIATION OF BTEX USING IMMOBILIZED NUTRIENTS: FIELD DEMONSTRATION AND MONITORING. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-96/145 (NTIS PB97-186290), 1996.
Denne, J E., L A. Eccles, E J. Englund, S P. Gardner, A T. Mazzella, J M. Nocerino, C G. Rosal, B A. Schumacher, J J. van Ee, AND K E. Varner. RESEARCH AT THE U.S. EPA'S CHARACTERIZATION AND ASSESSMENT PROGRAM. Presented at Invited Presentation for the University of Nevada Water Resources 706 Class, Las Vegas, NV, November 13, 1996.
1995
Rosal, C G. AND R. R. Dupont. SUBSURFACE MONITORING FOR ASSESSING IN SITU BIOCONTAINMENT OF PETROLEUM CONTAMINATED GROUND WATER PLUMES. Presented at Groundwater/Engineering Forums (Tech Support Center) General Meeting, Las Vegas, NV, January 21, 1995.