Author: P. ReynoldsPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
A Mass Spectrometer for the Isotopic Analysis of Hydrogen Containing a Low Concentration of Deuterium
Author: P. ReynoldsMass Spectrometric Determination of Deuterium in Water
Author: C. A. GoodallPublisher:
ISBN:
Category : Deuterium
Languages : en
Pages : 10
Book Description
A Mass Spectrometer for Routine Hydrogen Isotope Analysis
Author: C. M. StevensPublisher:
ISBN:
Category : Hydrogen
Languages : en
Pages : 16
Book Description
A Mass Spectrometer for Routine Hydrogen Isotope Analysis
Author: Alfred Otto NierPublisher:
ISBN:
Category : Hydrogen
Languages : en
Pages : 24
Book Description
The Noble Gases as Geochemical Tracers
Author: Pete BurnardPublisher: Springer Science & Business Media
ISBN: 3642288367
Category : Science
Languages : en
Pages : 390
Book Description
The twelve chapters of this volume aim to provide a complete manual for using noble gases in terrestrial geochemistry, covering applications which range from high temperature processes deep in the Earth’s interior to tracing climatic variations using noble gases trapped in ice cores, groundwaters and modern sediments. Other chapters cover noble gases in crustal (aqueous, CO2 and hydrocarbon) fluids and laboratory techniques for determining noble gas solubilities and diffusivities under geologically relevant conditions. Each chapter deals with the fundamentals of the analysis and interpretation of the data, detailing sampling and sampling strategies, techniques for analysis, sources of error and their estimation, including data treatment and data interpretation using recent case studies.
Miniature Mass Spectrometers for Hydrogen Isotopic Analyses
Author: W. A. SpencerPublisher:
ISBN:
Category :
Languages : en
Pages : 5
Book Description
As part of the Defense Programs Plant Directed Research and Development Program, the Savannah River Technology Center investigated the emerging area of miniature mass sensors for hydrogen and hydrogen isotope analysis. New sensors from Ferran Scientific and a beta prototype sensor from Mass Sensors, Inc. were purchased. A small pumping platform was designed and assembled. Components for miniature ion traps were investigated based on design information from Oak Ridge National Laboratories. The systems were compared to a conventional residual gas analyzer based on a Stanford Research RGA 300. Each of the sensors investigated had distinct advantages for particular applications. The Ferran system was the least expensive and the smallest, but it had low resolution for hydrogen and deuterium mixtures. The Mass Sensor unit used a new ExB design which achieved excellent resolution of the hydrogen isotopes in a small package. One limitation with the current design was the small 3 to 4 order dynamic range and another was a need for a variable sampling rate to speed analysis over a wider mass range.
A Mass Spectrometer for Routine Hydrogen Isotope Analyses
Author: Encyclopedia of Geochemistry
Author: C.P. MarshallPublisher: Springer Science & Business Media
ISBN: 0412755009
Category : Science
Languages : en
Pages : 677
Book Description
This is a complete and authoritative reference text on an evolving field. Over 200 international scientists have written over 340 separate topics on different aspects of geochemistry including organics, trace elements, isotopes, high and low temperature geochemistry, and ore deposits, to name just a few.
Encyclopedia of Geochemistry
Author: William M. WhitePublisher: Springer
ISBN: 9783319393117
Category : Science
Languages : en
Pages : 1680
Book Description
The Encyclopedia is a complete and authoritative reference work for this rapidly evolving field. Over 200 international scientists, each experts in their specialties, have written over 330 separate topics on different aspects of geochemistry including geochemical thermodynamics and kinetics, isotope and organic geochemistry, meteorites and cosmochemistry, the carbon cycle and climate, trace elements, geochemistry of high and low temperature processes, and ore deposition, to name just a few. The geochemical behavior of the elements is described as is the state of the art in analytical geochemistry. Each topic incorporates cross-referencing to related articles, and also has its own reference list to lead the reader to the essential articles within the published literature. The entries are arranged alphabetically, for easy access, and the subject and citation indices are comprehensive and extensive. Geochemistry applies chemical techniques and approaches to understanding the Earth and how it works. It touches upon almost every aspect of earth science, ranging from applied topics such as the search for energy and mineral resources, environmental pollution, and climate change to more basic questions such as the Earth’s origin and composition, the origin and evolution of life, rock weathering and metamorphism, and the pattern of ocean and mantle circulation. Geochemistry allows us to assign absolute ages to events in Earth’s history, to trace the flow of ocean water both now and in the past, trace sediments into subduction zones and arc volcanoes, and trace petroleum to its source rock and ultimately the environment in which it formed. The earliest of evidence of life is chemical and isotopic traces, not fossils, preserved in rocks. Geochemistry has allowed us to unravel the history of the ice ages and thereby deduce their cause. Geochemistry allows us to determine the swings in Earth’s surface temperatures during the ice ages, determine the temperatures and pressures at which rocks have been metamorphosed, and the rates at which ancient magma chambers cooled and crystallized. The field has grown rapidly more sophisticated, in both analytical techniques that can determine elemental concentrations or isotope ratios with exquisite precision and in computational modeling on scales ranging from atomic to planetary.
Author: