Aspects Of The Environmental Chemistry Of Technetium

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Aspects of the Environmental Chemistry of Technetium

Author : James Allen Gawenis
Publisher :
ISBN 13 :
Total Pages : 340 pages
Book Rating : 4.:/5 (487 download)

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Book Synopsis Aspects of the Environmental Chemistry of Technetium by : James Allen Gawenis

Download or read book Aspects of the Environmental Chemistry of Technetium written by James Allen Gawenis and published by . This book was released on 2001 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Technetium-99 is a high yield daughter product from fission reactions. The chemistry of this isotope makes it an environmental contaminant that is difficult to remove. This dissertation describes three aspects regarding the chemistry of technetium and its chemical analog, rhenium. The second chapter discusses a new method of extracting anionic metals from water with supercritical fluid carbon dioxide. Efficient extraction of tetrabutylammonium perrhenate was performed with methanol modified supercritical fluid carbon dioxide. This extraction was performed without complexation of rhenium prior to extraction. The third chapter examines the use of host-guest chemistry to selectively remove pertechnetate from aqueous systems. A metallated cyclotriveratrylene-type host selectively removed pertechnetate from saline at high efficiency in the presence of similar anions. The fourth chapter describes the possible use of technetium, in various chemical complexes, as a tracer for hydrological flows. Technetium-99m pharmaceuticals were added to different soils and water types to determine their sorption characteristics. Pertechnetate was found to have the lowest sorption while the complexed pharmaceuticals showed mixed, but higher, sorption.

Technetium in the Environment

Author : G. Desmet
Publisher : Springer Science & Business Media
ISBN 13 : 9400941897
Total Pages : 416 pages
Book Rating : 4.4/5 (9 download)

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Book Synopsis Technetium in the Environment by : G. Desmet

Download or read book Technetium in the Environment written by G. Desmet and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the discovery of technetium (in 1937, by Perrier and Segre), technetium-99 and technetium-99m have become most familiar in the specialised literature, the behaviour of the former being of concern regarding its health impact, the latter having been used intensively in medical tests for many years. The knowledge of the characteristics and behaviour of this element in nature is currently increasing exponentially. It has become clear, however, that there is still a serious shortage of information needed to assess properly its burden and impact on man and his environment. Technetium may indeed be released from nuclear installations or as a waste product from medical applications. It is generally considered to be highly mobile as the anion TcOi, but it is also suspected to be readily reduced in soils and metabolised in living beings into lower oxidation states. The seminar was planned to analyse thoroughly the experimental results obtained up to now and to make recommendations of specific issues requiring further research. This book presents the papers of the different sessions in the order of presentation, and the conclusions drawn by three discussion groups which dealt separately with: problems of sources and distribution of man-made technetium and its radiological consequences; the chemical behaviour of technetium in different ecosystems; biochemical reactions and binding with macromolecules in various life systems. vi Preface The editors, together with the Programme Committee of the Seminar, wish to express their gratitude to the chairmen of the different sessions for their summary of the group discussions.

Technetium

Author : Klaus Schwochau
Publisher : John Wiley & Sons
ISBN 13 : 3527613374
Total Pages : 461 pages
Book Rating : 4.5/5 (276 download)

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Book Synopsis Technetium by : Klaus Schwochau

Download or read book Technetium written by Klaus Schwochau and published by John Wiley & Sons. This book was released on 2008-11-21 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dieses einzigartige Handbuch gibt eine umfassende Übersicht über den aktuellen Stand der Technetium-Chemie und die Anwendung von Technetium in der Radiopharmazie. Klar und präzise dargestellt werden alle wichtigen Aspekte wie · natürliches und künstlich verursachtes Vorkommen in der Umwelt, · Isotope und Isomere, · Analytische Chemie und Biochemie, · thermodynamische Daten, Stabilität und Reaktivität, · intermetallische und binäre Verbindungen, und vor allem · Komplexchemie sowie · radiopharmazeutischer Einsatz. Dieses herausragende Werk erlaubt sowohl Experten als auch Laien mit naturwissenschaftlicher Bildung einen schnellen Zugang zu wichtiger Information. Deshalb ist das Handbuch genauso unverzichtbar für Forscher an Universitäten und Instituten, in der Nuklearmedizin und radiopharmazeutischen Industrie wie für wissenschaftliche Berater in Regierungen und Umweltverbänden.

Technetium Environmental Chemistry: Mechanisms for the Surface-mediated Reduction of Tc(VII)

Author : Diana Marcela Rodríguez Hernandez
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (126 download)

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Book Synopsis Technetium Environmental Chemistry: Mechanisms for the Surface-mediated Reduction of Tc(VII) by : Diana Marcela Rodríguez Hernandez

Download or read book Technetium Environmental Chemistry: Mechanisms for the Surface-mediated Reduction of Tc(VII) written by Diana Marcela Rodríguez Hernandez and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Chemistry of the Environment

Author : Ronald A. Bailey
Publisher : Academic Press
ISBN 13 : 0120734613
Total Pages : 862 pages
Book Rating : 4.1/5 (27 download)

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Book Synopsis Chemistry of the Environment by : Ronald A. Bailey

Download or read book Chemistry of the Environment written by Ronald A. Bailey and published by Academic Press. This book was released on 2002-03-21 with total page 862 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition of 'Chemistry of the Environment' emphasises several major concepts proving to be essential to the practice of environmental chemistry at the beginning of the new millennium.

Chemistry of the Environment

Author : David E. Newton
Publisher : Infobase Publishing
ISBN 13 : 1438109741
Total Pages : 241 pages
Book Rating : 4.4/5 (381 download)

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Book Synopsis Chemistry of the Environment by : David E. Newton

Download or read book Chemistry of the Environment written by David E. Newton and published by Infobase Publishing. This book was released on 2009 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discusses current research and advances in the field of environmental chemistry, including atmospheric chemistry, the chemistry of water pollution, and green chemistry.

Technetium-99m Radiopharmaceuticals

Author : IAEA.
Publisher :
ISBN 13 :
Total Pages : 378 pages
Book Rating : 4.:/5 (12 download)

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Book Synopsis Technetium-99m Radiopharmaceuticals by : IAEA.

Download or read book Technetium-99m Radiopharmaceuticals written by IAEA. and published by . This book was released on 2010 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: Technetium-99m radiopharmaceuticals will continue to have a significant impact in several areas of nuclear medicine. This publication is intended to provide a broad overview of the current status of technetium-99m radiopharmaceuticals. It includes chapters on the most advanced chemical techniques for labelling biomolecules and synthesizing suitable multifunctional ligands that will help in the development of specific radiotracers. Of special interest for the reader are details of recent research to develop technetium-99m tracers for monitoring different biological processes enabling the develo.

The chemical speciation of technetium in the environment

Author : S. T. Sparkes
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (597 download)

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Book Synopsis The chemical speciation of technetium in the environment by : S. T. Sparkes

Download or read book The chemical speciation of technetium in the environment written by S. T. Sparkes and published by . This book was released on 1987 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Applications of Environmental Chemistry

Author : Eugene R. Weiner
Publisher : CRC Press
ISBN 13 : 9781420032963
Total Pages : 300 pages
Book Rating : 4.0/5 (329 download)

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Book Synopsis Applications of Environmental Chemistry by : Eugene R. Weiner

Download or read book Applications of Environmental Chemistry written by Eugene R. Weiner and published by CRC Press. This book was released on 2010-12-12 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Up until the 1950s, waste disposal meant discharging it to the nearest river, burning it up or shipping it out to sea. Now we are paying the price. Current disposal and cleanup regulations have a different focus: correcting the problems caused by earlier misguided attitudes and maintaining a non-degrading environment. State and Federal clean air an

Environmental Consequences of War and Aftermath

Author : Tarek A. Kassim
Publisher : Springer
ISBN 13 : 9783540879619
Total Pages : 325 pages
Book Rating : 4.8/5 (796 download)

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Book Synopsis Environmental Consequences of War and Aftermath by : Tarek A. Kassim

Download or read book Environmental Consequences of War and Aftermath written by Tarek A. Kassim and published by Springer. This book was released on 2009-04-07 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: and used in munitions. Rather the requirements for the agent’s military effects took precedence. In addition, the interaction among the political, technical, and legal challenges connected with the known or possible risks posed by CW agents is complex and sometimes not well understood. This is usually because technical considerations, when acted on, are almost invariably informed by political ones, such as various legal requirements. The book contains nine chapters covering different aspects of the research on environmental consequences of war and its aftermath and covers in one additional chapter more general issues such as prevention of war and its environmental c- sequences, the legal, political, and technical background to selected environmental and human health effects of CW agents, and the atmospheric transport and depo- tion of persistent organic pollutants under warfare conditions to more specific ones related to two main tragic examples: the war in the Balkans and the Gulf War. Aspects of the war in the Balkans cover contamination by heavy metals in Serbian national parks, the impact of NATO strikes on the Danube river basin, and the problems associated with transuranium elements. The Gulf War in Kuwait covers other problems related to the impact of oil contamination, the impact on grou- water resources, and the soil damage of ground fortifications among other envir- mental and health problems.

An Introduction to Environmental Chemistry

Author : Julian E. Andrews
Publisher : Wiley-Blackwell
ISBN 13 : 9780632038541
Total Pages : 209 pages
Book Rating : 4.0/5 (385 download)

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Book Synopsis An Introduction to Environmental Chemistry by : Julian E. Andrews

Download or read book An Introduction to Environmental Chemistry written by Julian E. Andrews and published by Wiley-Blackwell. This book was released on 1996-02-12 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: As concern grows about the result of hazardous wastes in the environment and the role anthropogenic chemicals play in global warming, environmental chemistry assuming a prominent place in the undergraduate curriculum. In chemistry, earth-science and environmental- science departments, students have long needed a concise yet thorough introduction to the subject, and this text has been written to fill that need. Specifically designed as a textbook and based on many years of teaching experience. Focuses on the increasingly important and topical area of global climate change.

Environmental Chemistry

Author : Anil K De
Publisher : New Age International
ISBN 13 : 9788122414882
Total Pages : 430 pages
Book Rating : 4.4/5 (148 download)

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Book Synopsis Environmental Chemistry by : Anil K De

Download or read book Environmental Chemistry written by Anil K De and published by New Age International. This book was released on 2003 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Chemistry and Ecotoxicology of Pollution

Author : Des W. Connell
Publisher : John Wiley & Sons
ISBN 13 : 9780471862499
Total Pages : 470 pages
Book Rating : 4.8/5 (624 download)

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Book Synopsis Chemistry and Ecotoxicology of Pollution by : Des W. Connell

Download or read book Chemistry and Ecotoxicology of Pollution written by Des W. Connell and published by John Wiley & Sons. This book was released on 1984-03-20 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pollution and its control are now one of the most serious problems in environmental management, affecting localized areas, regions, and, increasingly, the entire ecosphere. Chemistry and Ecotoxicology of Pollution provides a basic understanding of the chemical, toxicological, and ecological factors involved when major classes of pollutants act on natural systems. The nature and effects of these pollutants are examined from the primary level of their sources and chemical properties, through their interactions in the environment, to their ultimate ecological effects on organisms and ecosystems. Pollutants are divided into groups, with similar properties, and then the chemistry and ecotoxicology of each group is defined. More importantly, in collating and evaluating available information on pollution processes, the book develops unifying theories on the fundamental chemical and ecological nature of pollution processes. The book uses a conceptual framework to evaluate the impact of pollutants on the components and functions of natural ecosystems. It is based on the chemical and physical properties of a pollutant, its environmental behavior and fate, exposure to and toxic effects on organisms, their populations, communities, and responses of affected ecosystems. This sequence can be applied to known, potential, and emerging pollutants of concern. As government initiatives for the control of chemicals take greater effects, pollution research, particularly in ecotoxicology, will be further developed. Chemistry and Ecotoxicology of Pollution helps play an important role in determining the future direction of research activities in environmental management and pollution control on a worldwide scale. It is a basic resource for students (e.g. environmental chemistry, ecology, land and water management, environmental or public health, environmental engineering, and sustainability science), scientists, researchers, policy makers, and professionals in need of a clear understanding of the nature and effects of environmental pollution from an ecological perspective.

Top Shelf

Author : David E. Newton
Publisher : Walch Publishing
ISBN 13 : 9780825150456
Total Pages : 220 pages
Book Rating : 4.1/5 (54 download)

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Book Synopsis Top Shelf by : David E. Newton

Download or read book Top Shelf written by David E. Newton and published by Walch Publishing. This book was released on 2004 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Analytical Aspects of environmental chemistry

Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (915 download)

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Book Synopsis Analytical Aspects of environmental chemistry by :

Download or read book Analytical Aspects of environmental chemistry written by and published by . This book was released on 1983 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Chemical Thermodynamics of Technetium

Author : J.A. Rard
Publisher : North Holland
ISBN 13 :
Total Pages : 578 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Chemical Thermodynamics of Technetium by : J.A. Rard

Download or read book Chemical Thermodynamics of Technetium written by J.A. Rard and published by North Holland. This book was released on 1999-12-13 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume in the series Chemical Thermodynamics provides a comprehensive review and critical evaluation of experimental data available for the chemical thermodynamics of inorganic compounds and aqueous species and complexes of technetium. The objective of the reviews in the series Chemical Thermodynamics is to provide a set of reliable thermodynamic data that can be used to describe the behaviour of the elements reviewed under conditions relevant for radioactive waste disposal systems and various geochemical environments. Data and their uncertainty limits are recommended for the formation energies, enthalpies and entropies of selected aqueous complexes, solids and gaseous compounds containing technetium. The data are internally consistent and compatible with the CODATA Key Values, as well as with the data in the earlier volumes in the series Chemical Thermodynamics. The book contains a detailed discussion of the selection procedures used

Experimental and Theoretical Approaches to Actinide Chemistry

Author : John K. Gibson
Publisher : John Wiley & Sons
ISBN 13 : 1119115523
Total Pages : 534 pages
Book Rating : 4.1/5 (191 download)

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Book Synopsis Experimental and Theoretical Approaches to Actinide Chemistry by : John K. Gibson

Download or read book Experimental and Theoretical Approaches to Actinide Chemistry written by John K. Gibson and published by John Wiley & Sons. This book was released on 2018-03-19 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review of contemporary actinide research that focuses on new advances in experiment and theory, and the interplay between these two realms Experimental and Theoretical Approaches to Actinide Chemistry offers a comprehensive review of the key aspects of actinide research. Written by noted experts in the field, the text includes information on new advances in experiment and theory and reveals the interplay between these two realms. The authors offer a multidisciplinary and multimodal approach to the nature of actinide chemistry, and explore the interplay between multiple experiments and theory, as well as between basic and applied actinide chemistry. The text covers the basic science used in contemporary studies of the actinide systems, from basic synthesis to state-of-the-art spectroscopic and computational techniques. The authors provide contemporary overviews of each topic area presented and describe the current and anticipated experimental approaches for the field, as well as the current and future computational chemistry and materials techniques. In addition, the authors explore the combination of experiment and theory. This important resource: Provides an essential resource the reviews the key aspects of contemporary actinide research Includes information on new advances in experiment and theory, and the interplay between the two Covers the basic science used in contemporary studies of the actinide systems, from basic synthesis to state-of-the-art spectroscopic and computational techniques Focuses on the interplay between multiple experiments and theory, as well as between basic and applied actinide chemistry Written for academics, students, professionals and researchers, this vital text contains a thorough review of the key aspects of actinide research and explores the most recent advances in experiment and theory.