Compilation Of Minimum And Maximum Isotope Ratios Of Selected Elements In Naturally Occurring Terrestrial Materials And Reagents PDF Download
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Author | : Tyler B. Coplen |
Publisher | : |
Total Pages | : 112 |
Release | : 2002 |
Genre | : Geochemistry |
ISBN | : |
Download Compilation of Minimum and Maximum Isotope Ratios of Selected Elements in Naturally Occurring Terrestrial Materials and Reagents Book in PDF, ePub and Kindle
Documented variations in the isotopic compositions of some chemical elements are responsible for expanded uncertainties in the standard atomic weights published by the Commission on Atomic Weights and Isotopic Abundances of the International Union of Pure and Applied Chemistry. This report summarizes reported variations in the isotopic compositions of 20 elements that are due to physical and chemical fractionation processes (not due to radioactive decay) and their effects on the standard atomic weight uncertainties. For 11 of those elements (hydrogen, lithium, boron, carbon, nitrogen, oxygen, silicon, sulfur, chlorine, copper, and selenium), standard atomic weight uncertainties have been assigned values that are substantially larger than analytical uncertainties because of common isotope abundance variations in materials of natural terrestrial origin. For 2 elements (chromium and thallium), recently reported isotope abundance variations potentially are large enough to result in future expansion of their atomic weight uncertainties. For 7 elements (magnesium, calcium, iron, zinc, molybdenum, palladium, and tellurium), documented isotope-abundance variations in materials of natural terrestrial origin are too small to have a significant effect on their standard atomic weight uncertainties.
Author | : T. B. Coplen |
Publisher | : |
Total Pages | : 98 |
Release | : 2017 |
Genre | : Isotope geology |
ISBN | : |
Download Compilation of Minimum and Maximum Isotope Ratios of Selected Elements in Naturally Occurring Terrestrial Materials and Reagents Book in PDF, ePub and Kindle
Author | : T. B. Coplen |
Publisher | : |
Total Pages | : 98 |
Release | : 2002 |
Genre | : |
ISBN | : |
Download Compilation of Minimum and Maximum Isotope Ratios of Selected Elements in Naturally Occuring Terrestrial Materials and Reagents Book in PDF, ePub and Kindle
Author | : Tyler B. Coplen |
Publisher | : |
Total Pages | : 114 |
Release | : 2002 |
Genre | : Geochemistry |
ISBN | : |
Download Compilation of Minimum and Maximum Isotope Ratios of Selected Elements in Naturally Occurring Terrestrial Materials and Reagents Book in PDF, ePub and Kindle
Documented variations in the isotopic compositions of some chemical elements are responsible for expanded uncertainties in the standard atomic weights published by the Commission on Atomic Weights and Isotopic Abundances of the International Union of Pure and Applied Chemistry. This report summarizes reported variations in the isotopic compositions of 20 elements that are due to physical and chemical fractionation processes (not due to radioactive decay) and their effects on the standard atomic weight uncertainties. For 11 of those elements (hydrogen, lithium, boron, carbon, nitrogen, oxygen, silicon, sulfur, chlorine, copper, and selenium), standard atomic weight uncertainties have been assigned values that are substantially larger than analytical uncertainties because of common isotope abundance variations in materials of natural terrestrial origin. For 2 elements (chromium and thallium), recently reported isotope abundance variations potentially are large enough to result in future expansion of their atomic weight uncertainties. For 7 elements (magnesium, calcium, iron, zinc, molybdenum, palladium, and tellurium), documented isotope-abundance variations in materials of natural terrestrial origin are too small to have a significant effect on their standard atomic weight uncertainties.
Author | : |
Publisher | : |
Total Pages | : 432 |
Release | : 2001 |
Genre | : Hydrology |
ISBN | : |
Download Water-resources Investigations Report Book in PDF, ePub and Kindle
Author | : Ryan F. Thompson |
Publisher | : |
Total Pages | : 434 |
Release | : 2001 |
Genre | : Government publications |
ISBN | : |
Download Water Resources of the Lake Traverse Reservation, South and North Dakota, and Roberts County, South Dakota Book in PDF, ePub and Kindle
Author | : Pier A. de Groot |
Publisher | : Elsevier |
Total Pages | : 1265 |
Release | : 2004-10-27 |
Genre | : Science |
ISBN | : 0080533272 |
Download Handbook of Stable Isotope Analytical Techniques Book in PDF, ePub and Kindle
(Parent with price) Volume I contains subjective reviews, specialized and novel technique descriptions by guest authors. Part 1 includes contributions on purely analytical techniques and Part 2 includes matters such as development of mass spectrometers, stability of ion sources, standards and calibration, correction procedures and experimental methods to obtain isotopic fractionation factors.Volume II will be available in 2005.
Author | : Alice Fiona Charteris |
Publisher | : Springer Nature |
Total Pages | : 261 |
Release | : 2019-10-28 |
Genre | : Science |
ISBN | : 3030310574 |
Download 15N Tracing of Microbial Assimilation, Partitioning and Transport of Fertilisers in Grassland Soils Book in PDF, ePub and Kindle
This book presents innovative research on soil nitrogen cycling and nitrate leaching with a view to improving soil management and fertiliser nitrogen use efficiency and reducing nitrogen leaching losses. In this regard, nitrogen-15 (15N)-labelled fertiliser was used as a biochemical and physical stable isotope tracer in laboratory and field experiments. The major outcome of the research was the development, validation and application of a new compound-specific amino acid 15N stable isotope probing method for assessing the assimilation of fertiliser nitrogen by soil microbial biomass. The novelty of the method lies in its tracing of incorporated nitrogen into newly biosynthesised microbial protein in time-course experiments using gas chromatography-combustion-isotope ratio mass spectrometry. The approach provides previously unattainable insights into the microbial processing of different nitrogen fertilisers in different soils. Further, it identifies the mechanistic link between molecular-scale processes and observations of field-scale fertiliser nitrogen immobilisation studies. The method and the results presented here will have far-reaching implications for the development of enhanced recommendations concerning farm-based soil management practices for increasing soil productivity and reducing nitrogen losses, which is essential to minimising environmental impacts.
Author | : Fang-Zhen Teng |
Publisher | : Walter de Gruyter GmbH & Co KG |
Total Pages | : 902 |
Release | : 2017-03-06 |
Genre | : Science |
ISBN | : 3110545632 |
Download Non-Traditional Stable Isotopes Book in PDF, ePub and Kindle
The development of multi-collector inductively coupled plasma mass spectrometry (MC-ICPMS) makes it possible to precisely measure non-traditional stable isotopes. This volume reviews the current status of non-traditional isotope geochemistry from analytical, theoretical, and experimental approaches to analysis of natural samples. In particular, important applications to cosmochemistry, high-temperature geochemistry, low-temperature geochemistry, and geobiology are discussed. This volume provides the most comprehensive review on non-traditional isotope geochemistry for students and researchers who are interested in both the theory and applications of non-traditional stable isotope geochemistry.
Author | : Joseph Adu-Gyamfi |
Publisher | : Springer Nature |
Total Pages | : 172 |
Release | : |
Genre | : |
ISBN | : 3031472659 |
Download Tracing the Sources and Fate of Contaminants in Agroecosystems Book in PDF, ePub and Kindle