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Records 26 to
50
of 59 records from [ORD-NERL] from author Edward Heithmar
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., 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.
Cizdziel, J V., T A. Hinners, AND E M. Heithmar. DETERMINATION OF TOTAL MERCURY IN FISH TISSUES USING PYROLYSIS ATOMIC ABSORPTION SPECTROMETRY WITH GOLD AMALGAMATION. WATER, AIR AND SOIL POLLUTION:FOCUS 135(1-4):355-370, (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.
Cizdziel, J V., T A. Hinners, J. E. Pollard, E M. Heithmar, AND C L. Cross. MERCURY CONCENTRATIONS IN SKELETAL MUSCLE OF FISH FROM LAKE MEAD, USA, RELATED TO FISH SIZE, CONDITION, TROPHIC LEVEL, LOCATION, AND CONSUMPTION RISK. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 43(3):309-317, (2002).
Heithmar, E M. THE ENVIRONMENTAL CHEMISTRY BRANCH - PROVIDING CHEMICAL ANSWERS TO ENVIRONMENTAL EXPOSURE AND RISK PROBLEMS. Presented at Water-Testing and Quality Assurance Symposium, Arlington, VA, August 11-14, 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
Heithmar, E M. AND J V. Cizdziel. MEASUREMENT OF MERCURY IN SOLID ENVIRONMENTAL SAMPLES BY ICPMS WITH ON-LINE SAMPLE ASHING AND HG CONCENTRATION USING AN AUTOMATIC MERCURY ANALYZER (TM). Presented at Winter Conference on Plasma Spectrochemistry, Ft. Lauderdale, FL, January 10-15, 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
Cizdziel, J V., E M. Heithmar, AND T A. Hinners. MERCURY CONCENTRATIONS IN MUSCLE OF GAMEFISH FROM LAKE MEAD. Presented at Las Vegas Water Quality Forum, Las Vegas, NV, July 8, 1999.
1998
Momplaisir, G M., L D. Betowski, AND E M. Heithmar. DETERMINATION OF NINE ORGANOSELENIUM COMPOUNDS USING HIGH PERFORMANCE LIQUID CHROMATOGRAPHY COUPLED WITH ELECTROSPRAY MASS SPECTROMETRY. Presented at 46th American Society for Mass Spectrometry Conference on Mass Spectrometry and Allied Topics, Orlando, FL, May 31-June 4, 1998.