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Search Results for the EPA National Library Catalog
Items Found: 573
Showing: Items 401 - 450
Your Search: (SUBJECT=Mass spectroscopy)
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Title
Year Published
401
Micromethods for Toxic Residue Screening by Negative Chemical Ionization Mass Spectrometry.
1980
402
Minimization of Interferences in Inductively Coupled Plasma Mass Spectrometry Using On-Line Preconcentration.
1990
403
Monitoring of ambient levels of EDC near production and user facilities /
1979
404
Monitoring system for collection and analyses of ambient ethylene dichloride (EDC) levels in the urban atmosphere /
1979
405
Moving Belt Interface with Spray Deposition for Liquid Chromatography/Mass Spectrometry.
1983
406
Multielement Analysis of Environmental Samples by Spark Source Mass Spectrometry.
1974
407
Multispectral Identification and Confirmation of Organic Compounds in Wastewater Extracts.
1990
408
Multispectral Identification of Alkyl and Chloroalkyl Phosphates from an Industrial Effluent.
1991
409
Multispectral Identification of Chlorine Dioxide Disinfection Byproducts in Drinking Water.
1994
410
Multispectral Identification of Chlorine Dioxide Disinfection Byproducts in Drinking Water.
1994
411
Multispectral identification of potentially hazardous byproducts of ozonation and chlorination, part 1 : studies of chromatographic and spectrographic properties of MX /
1991
412
Mutagenicity of emissions from the simulated open burning of scrap rubber tires
1992
413
N-Octanol/Water Partition Coefficients by Reverse Phase Liquid Chromatography/Mass Spectrometry for Eight Tetrachlorinated Planar Molecules.
1986
414
National dioxin study : analytical procedures and quality assurance plan for the analysis of 2,3,7,8-TCDD in tier 3-7 samples of the U.S. Environmental Protection Agency national dioxin strategy.
1986
415
National Study of Chemical Residues in Fish. 3. Study Results.
1994
416
Negative Chemical Ionization Studies of Human and Food Chain Contamination with Xenobiotic Chemicals.
1980
417
New Directions in Oxidant By-Product Research: Identification and Significance.
1985
418
New Metabolite of Chlorpyrifos: Isolation and Identification.
1977
419
Non-polar volatile organic compounds in whole air samples from the autotex studies. {microfiche}
1991
420
Nonmethane Organic Compounds and Speciated Non-Methane Organic Compounds Monitoring Program, 1995.
1996
421
Oil Pollution Source Identification.
1973
422
On-Line Detection of Dichlorodibenzodioxins by DLR Jet-REMPI.
1998
423
On-Road Sampling of Diesel Engine Emissions of Polychlorinated Dibenzo-p-Dioxin and Polychlorinated Dibenzofuran.
1997
424
On-Site GC/MS Analysis of Chapman Gasification Separator Liquor.
1981
425
Optimization of GC/MS Based Tenax Collection Method for Toxic Organics.
1983
426
Optimization of Purging Efficiency and Quantification of Organic Contaminants from Water Using a 1-L Closed-Loop-Stripping Apparatus and Computerized Capillary Column GC/MS.
1983
427
Optimizing Sensitivity of SIM Mode of GC/MS Analysis for EPA's TO-14 Air Toxics Method.
1991
428
Organic characterization of aerosols and vapor phase compounds in urban atmospheres /
1978
429
Organic Compounds in Surface Sediments and Oyster Tissues from the Chesapeake Bay. Appendices.
1983
430
Organic Compounds Near Dumpsites in Niagara Falls, New York.
1981
431
Organic Contaminants in Sediments from the Trenton Channel of the Detroit River, Michigan.
1988
432
Organic emissions from automobile interiors /
1977
433
Organic Pollutant Identification Utilizing Mass Spectrometry.
1973
434
Organic Water Pollutant Analysis by Gas Chromatography-Mass Spectrometry.
1981
435
Organics in the Environment.
1979
436
Outdoor Smog Chamber Experiments Using Automobile Exhaust.
1985
437
Oxidation of Nitrapyrin to 6-Chloropicolinic Acid by the Ammonia-Oxidizing Bacterium 'Nitrosomonas europaea'.
1992
438
Ozonation Byproducts. 2. Improvement of an Aqueous-Phase Derivatization Method for the Detection of Formaldehyde and Other Carbonyl Compounds Formed by the Ozonation of Drinking Water.
1989
439
Ozonation/Post-Chlorination of Humic Acid: A Model for Predicting Drinking Water Disinfection By-Products.
1992
440
Packed-Tower Aeration Study to Remove Volatile Organics from Groundwater at Wurtsmith Air Force Base, Michigan.
1985
441
Para-Hydroxybenzoate as an Intermediate in the Anaerobic Transformation of Phenol to Benzoate.
1991
442
Partial characterization of chlorinated organics in superchlorinated septages and mixed sludges /
1978
443
Particle Beam Liquid Chromatography-Electron Impact Mass Spectrometry of Dyes.
1989
444
Pattern Recognition/Expert System for Mass Spectra of Volatile Toxic and Other Organic Compounds.
1992
445
PCB Metabolism in Rats Following Prolonged Exposure to Aroclor 1242 and Aroclor 1016.
1976
446
Penta Wood Products Site: Analysis of Pentachlorophenol Using a Mobile Laboratory Equipped with State-of-the-Art Instrumentation.
1994
447
Pentachlorodibenzofurans: Synthesis, Capillary Gas Chromatography and Gas Chromatographic/Mass Spectrometric Characteristics.
1986
448
Pentachlorophenol in the Environment. Evidence for Its Origin from Commercial Pentachlorophenol by Negative Chemical Ionization Mass Spectrometry.
1980
449
Pentachlorophenol in the Environment: Evidence for Its Origin from Commercial Pentachlorophenol by Negative Chemical Ionization Mass Spectrometry.
1980
450
Performance Evaluation Materials for the Analysis of Volatile Organic Contaminants in Soil: A Preliminary Assessment.
1990
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