Download or read book Laser Microprobe Mass Spectrometry Studies of Polycyclic Aromatic Hydrocarbons in Soils Sediments and Interstellar Ice Analogs written by John Sebastian Gillette and published by . This book was released on 2000 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Astrochemical Studies of Polycyclic Aromatic Hydrocarbons and Fullerenes written by Jamie Elizabeth Elsila and published by . This book was released on 2004 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dissertation Abstracts International written by and published by . This book was released on 2001 with total page 834 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Directory of Graduate Research written by and published by . This book was released on 2001 with total page 1846 pages. Available in PDF, EPUB and Kindle. Book excerpt: Faculties, publications and doctoral theses in departments or divisions of chemistry, chemical engineering, biochemistry and pharmaceutical and/or medicinal chemistry at universities in the United States and Canada.

Download or read book Methods of Analysis by the U S Geological Survey National Water Quality Laboratory written by Mary C. Olson and published by . This book was released on 2004 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Measurement of Polycyclic Aromatic Hydrocarbons in Soils and Sediments by Partical beam high performance Liquid Chromatography mass Spectrometry written by Chris M. Pace and published by . This book was released on 1991 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development and Application of Pyrolysis gas Chromatography mass Spectrometry for Determining Sequestration of Polycyclic Aromatic Hydrocarbons in Contaminated Soils and Sediments written by Amanda Janice McKay and published by . This book was released on 2005 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Polycyclic Aromatic Hydrocarbons in Bottom Sediment and Bioavailability in Streams in the New River Gorge National River and Gauley River National Recreation Area West Virginia 2002 written by Terence Messinger and published by . This book was released on 2004 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Liquid Chromatography of Polycyclic Aromatic Hydrocarbons written by and published by . This book was released on 1993 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Determination of Elements in Natural water Biota Sediment and Soil Samples Using Collision Reaction Cell Inductively Coupled Plasma mass Spectrometry written by John R. Garbarino and published by CreateSpace. This book was released on 2014-06-16 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new analytical method for the determination of ele- ments in filtered aqueous matrices using inductively coupled plasma–mass spectrometry (ICP–MS) has been implemented at the U.S. Geological Survey National Water Quality Labo- ratory that uses collision/reaction cell technology to reduce molecular ion interferences. The updated method can be used to determine elements in filtered natural-water and other filtered aqueous matrices, including whole-water, biota, sediment, and soil digestates. Helium or hydrogen is used as the collision or reaction gas, respectively, to eliminate or substantially reduce interferences commonly resulting from sample-matrix composition. Helium is used for molecular ion interferences associated with the determination of As, Co, Cr, Cu, K, Mg, Na, Ni, V, W and Zn, whereas hydrogen is used for Ca, Fe, Se, and Si. Other elements that are not affected by molecular ion interference also can be determined simply by not introducing a collision/reaction gas into the cell. Analy- sis time is increased by about a factor of 2 over the previous method because of the additional data acquisition time in the hydrogen and helium modes.

Download or read book Polycyclic Aromatic Hydrocarbons in Bottom Sediment and Bioavailability in Streams in the New River Gorge National River and Gauley River National Recreation Area West Virginia 2002 written by Terence Messinger and published by . This book was released on 2004 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mass Spectrometry in Science and Technology written by Frederick Andrew White and published by . This book was released on 1968 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Determination of Semivolatile Organic Compounds and Polycyclic Aromatic Hydrocarbons in Solids by Gas Chromatography mass Spectrometry written by and published by . This book was released on 2006 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigation of Polycyclic Aromatic Hydrocarbons PAHs on Dry Flue Gas Desulfurization FGD By products written by Ping Sun and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: The primary goal of this research was to examine polycyclic aromatic hydrocarbons (PAHs) on dry FGD by-products to determine environmentally safe reuse options of this material. Due to the lack of information on the analytical procedures for measuring PAHs on FGD by-products, our initial work focused on analytical method development. Ultrasonic extraction with toluene as the solvent turned out to be a fast and efficient method to extract PAHs from LSD ash. The reactions of PAHs under standard ultrasonic extraction conditions were studied to address concern over the possible degradation of PAHs by ultrasound. The identified degradation by-products including methylphenanthrene and methyl-naphthalene after sonication of phenanthrene suggested that phenanthrene reacts by both direct pyrolysis and reaction with methyl radicals formed from pyrolysis of the alkane solvent. After analytical method development, speciation and concentrations of PAHs on LSD ash were investigated. Low molecular weight compounds such as naphthalene, phenanthrene and pyrene were the primary PAHs identified. Although PAH speciation on LSD ash varied in different samples, concentrations of PAHs identified were consistently low at the mg/kg level. Daily, weekly, monthly, and yearly variability of PAHs showed a low variability from 2001-2004. Results also suggested that total measured PAH concentrations were correlated with the organic carbon content of the LSD ash. The LSD ash samples were fractionated and unburned carbon was separated for PAH measurements. The PAH concentrations on the unburned carbon were the highest among all the fractions indicating an association between PAHs and unburned carbon. However, PAHs detected on the lime-enriched fraction suggested capture of PAHs by injected slaked lime. Finally, solid by-products collected from the Ohio State carbonation and ash reactivation (OSCAR) process were examined for PAHs. The compositions and concentrations of PAHs were found to be affected by the sorbent type. Samples collected from the baghouse had higher concentrations than the samples collected from the cyclone possibly due to the longer residence time of the particles and the lower temperature in the baghouse. Moreover, operational parameters such as sorbent injection rate, flue gas flow rate also were determined to affect the PAH concentrations on the solid by-products.

Download or read book Dispersion and Fate of Oil from Oil based Drilling Muds at West Venture C 62 and South Des Barres O 76 Sable Island Nova Scotia written by M. B. Yunker and published by Environmental Studies Revolving Fund. This book was released on 1987 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes a sediment sampling and analysis program carried out at two offshore oil sites near Sable Island. The program was carried out to monitor the characteristics, behaviour, and fate of hydrocarbons introduced into the benthic environment by the use of oil-based drilling muds. The report describes the methods used for extraction and gas chromatographic analysis of aliphatic and aromatic hydrocarbon content in the samples collected before and after the discharge of oiled cuttings at each site. Summary tables and figures delineate the spread of oil from each wellhead and detailed results of each analysis are presented. Results of the field studies are compared to those of a computer model which simulated the dispersion and fate of the cuttings. Reasons for discrepancies between field and model studies are discussed.

Download or read book Determination of Elements in Natural water Biota Sediment and Soil Samples Using Collision reaction Cell Inductively Coupled Plasma mass Spectrometry written by John R. Garbarino and published by . This book was released on 2006 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Determination of Wastewater Compounds in Sediment and Soil by Pressurized Solvent Extraction Solid phase Extraction and Capillary column Gas Chromatography Mass Spectrometry written by Mark R. Burkhardt and published by CreateSpace. This book was released on 2014-06-16 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: A method for the determination of 61 compounds in environmental sediment and soil samples is described. The method was developed in response to increasing concern over the effects of endocrine-disrupting chemicals in wastewater and wastewater-impacted sediment on aquatic organisms. This method also may be used to evaluate the effects of combined sanitary and storm-sewer overflow on the water and sedi- ment quality of urban streams. Method development focused on the determination of compounds that were chosen on the basis of their endocrine-disrupting potential or toxicity. These compounds include the alkylphenol ethoxylate nonionic surfactants and their degradates, food additives, fragrances, antioxidants, flame retardants, plasticizers, industrial solvents, disinfectants, fecal sterols, polycyclic aromatic hydrocarbons, and high-use domestic pesticides.