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EBookClubs

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Book Analyzing Organics in Drinking Water

Download or read book Analyzing Organics in Drinking Water written by and published by . This book was released on 1981 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Chemistry and Analysis of Volatile Organic Compounds in the Environment

Download or read book Chemistry and Analysis of Volatile Organic Compounds in the Environment written by H.J. Bloemen and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interest in the occurrence and behaviour of volatile organic compounds (VOCs) is increasing due to their adverse effects on the environment and human health. It is essential that information is made available on the various aspects of research on VOCs to enable better understanding and control of the various environmental and human health threats. The information in this book will be used to improve communication and understanding of the various approaches. In particular the potential and limitations of the described analytical methods will be essential in defining environmental studies and interpreting the results.

Book Application of Deuterated Organics as Internal Standards in Volatile Organic Analysis from Drinking Water and Wastewater by Computerized Gas Chromatography Mass Spectrometry

Download or read book Application of Deuterated Organics as Internal Standards in Volatile Organic Analysis from Drinking Water and Wastewater by Computerized Gas Chromatography Mass Spectrometry written by RF. Devine and published by . This book was released on 1979 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: A method utilizing computerized gas chromatography-mass spectrometry (GC-MS) is presented for qualitative and quantitative determination of volatile organics in drinking waters, natural waters, or industrial effluent waters. It is based on the addition of deuterated internal standard, 1,2-dichlorethane-d4, to an appropriate-sized portion of sample and use of the Bellar-Lichtenberg method of purge-trap-desorb into determinative instrument. Method validation consisted of analyzing volatile priority pollutants at 2, 10, 50, 100, and 200 ppb with internal standard at 20 ppb in each of seven replicate analysis at each dose. Comparison of relative standard deviations (RSD) of internal and external standard methods of GC-MS analysis revealed no significant differences. This study also yielded valuable information concerning repeatability, reproducibility, stability of internal standard, linear dynamic range of GC-MS, and RSD variation with different area regenerations of diagnostic atomic mass units. Pollutant identification is based on retention time and total mass spectral comparison with authentic compound. Quantitation is based on measurement of the areas of retrieved diagnostic atomic mass unit regeneration of contaminant and internal standard. Using response factors determined from analysis of standard mixtures containing compounds of interest and internal standard, and the known mass of internal standard, the concentration is calculated. Lower detection limit for the volatile priority pollutants is approximately 1 ?g/litre. This method has detected several volatiles that are not Environmental Protection Agency priority pollutants.

Book Determination of Organic Compounds in Drinking Water by Liquid solid Extraction and Capillary Column Gas Chromatography mass Spectrometry

Download or read book Determination of Organic Compounds in Drinking Water by Liquid solid Extraction and Capillary Column Gas Chromatography mass Spectrometry written by and published by . This book was released on 1988 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Contaminated Water Supplies at Camp Lejeune

Download or read book Contaminated Water Supplies at Camp Lejeune written by National Research Council and published by National Academies Press. This book was released on 2009-09-06 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the early 1980s, two water-supply systems on the Marine Corps Base Camp Lejeune in North Carolina were found to be contaminated with the industrial solvents trichloroethylene (TCE) and perchloroethylene (PCE). The water systems were supplied by the Tarawa Terrace and Hadnot Point watertreatment plants, which served enlisted-family housing, barracks for unmarried service personnel, base administrative offices, schools, and recreational areas. The Hadnot Point water system also served the base hospital and an industrial area and supplied water to housing on the Holcomb Boulevard water system (full-time until 1972 and periodically thereafter). This book examines what is known about the contamination of the water supplies at Camp Lejeune and whether the contamination can be linked to any adverse health outcomes in former residents and workers at the base.

Book Organic Compounds in Natural Waters

Download or read book Organic Compounds in Natural Waters written by T Roy Crompton and published by CRC Press. This book was released on 2013-09-23 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: The potential health hazards that might arise from the presence of organic substances in water are a matter of increasing concern to the water industry, environmentalists and the general public alike. This comprehensive reference draws together and systematises the vast body of information available on the occurrence and determination of organic substances in natural waters. Organic Compounds in Natural Waters provides a comprehensive description of organic substances in waters. Methods are provided in broad outline, with guidance on their applicability, their comparative advantages and disadvantages, possible interferences, sensitivity and detection levels. The book is an essential reference for analytical chemists working in industry, water utilities, government, non government organisations and regulatory agencies and environmental/analytical consultants.

Book Selected Water Resources Abstracts

Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Determination of Organic Compounds in Natural and Treated Waters

Download or read book Determination of Organic Compounds in Natural and Treated Waters written by T R Crompton and published by CRC Press. This book was released on 1999-10-14 with total page 929 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive reference which draws together and systematises the information available on the occurrence and determination of organic substances in all types of non-saline and saline natural and treated waters. It provides a comprehensive description of organic compounds in all natural and treated water types. The book includes a series of table

Book Using Gas Chromatography to Investigate Volatile Organics in Drinking Water

Download or read book Using Gas Chromatography to Investigate Volatile Organics in Drinking Water written by Aaron William Brown and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Trihalomethanes (THMs) are a major class of disinfection by-products found in chlorinated drinking water. They are an unfortunate side effect of the chlorination process. Due to possible adverse health effects, the United States Environmental Protection Agency has set a maximum contaminant level of 0.080 milligrams per liter for Total Trihalomethanes in drinking water. Recently, the way in which utilities report their trihalomethane levels has changed. This has renewed interest in on-line, near real time monitoring of trihalomethane concentrations. The focus of this research was the development of a fully automated instrument capable of on-line near real time measurement of THMs concentrations in drinking water distribution systems and its application to real world problems. A commercial instrument that was shown to be both rugged and robust was developed. This instrument was used to collect unprecedented on-line THMs data in multiple distribution systems. This data was then used for treatment process optimization in a functioning water treatment plant. Comparison to empirical models showed that it is possible to use on-line monitoring data to calibrate the models for a particular system. This is a possible alternative to the expensive process of developing an entirely new empirical model. Additional studies used the rate of formation of THMs to detemrine the time to the first tap for a particular treatment system. This determined amount of time was used with the rate of ormation for haloacetic acids to distinguish between concentrations resulting from formation and thos resulting from the use of bulk hypochlorite solution.

Book Development of a Supported Capillary Membrane Sampler gas Chromatograph for the Analysis of Volatile Organic Compounds in Drinking Water

Download or read book Development of a Supported Capillary Membrane Sampler gas Chromatograph for the Analysis of Volatile Organic Compounds in Drinking Water written by Zhaohui Liao and published by . This book was released on 2001 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: