Compilation of Minimum and Maximum Isotope Ratios of Selected Elements in Naturally Occurring Terrestrial Materials and Reagents
Title | Compilation of Minimum and Maximum Isotope Ratios of Selected Elements in Naturally Occurring Terrestrial Materials and Reagents PDF eBook |
Author | Tyler B. Coplen |
Publisher | |
Pages | 112 |
Release | 2002 |
Genre | Geochemistry |
ISBN |
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.
Compilation of Minimum and Maximum Isotope Ratios of Selected Elements in Naturally Occurring Terrestrial Materials and Reagents
Title | Compilation of Minimum and Maximum Isotope Ratios of Selected Elements in Naturally Occurring Terrestrial Materials and Reagents PDF eBook |
Author | T. B. Coplen |
Publisher | |
Pages | 98 |
Release | 2017 |
Genre | Isotope geology |
ISBN |
Compilation of Minimum and Maximum Isotope Ratios of Selected Elements in Naturally Occuring Terrestrial Materials and Reagents
Title | Compilation of Minimum and Maximum Isotope Ratios of Selected Elements in Naturally Occuring Terrestrial Materials and Reagents PDF eBook |
Author | T. B. Coplen |
Publisher | |
Pages | 98 |
Release | 2002 |
Genre | |
ISBN |
Compilation of Minimum and Maximum Isotope Ratios of Selected Elements in Naturally Occurring Terrestrial Materials and Reagents
Title | Compilation of Minimum and Maximum Isotope Ratios of Selected Elements in Naturally Occurring Terrestrial Materials and Reagents PDF eBook |
Author | Tyler B. Coplen |
Publisher | |
Pages | 114 |
Release | 2002 |
Genre | Geochemistry |
ISBN |
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.
Water-resources Investigations Report
Title | Water-resources Investigations Report PDF eBook |
Author | |
Publisher | |
Pages | 432 |
Release | 2001 |
Genre | Hydrology |
ISBN |
Water Resources of the Lake Traverse Reservation, South and North Dakota, and Roberts County, South Dakota
Title | Water Resources of the Lake Traverse Reservation, South and North Dakota, and Roberts County, South Dakota PDF eBook |
Author | Ryan F. Thompson |
Publisher | |
Pages | 434 |
Release | 2001 |
Genre | Government publications |
ISBN |
Handbook of Stable Isotope Analytical Techniques
Title | Handbook of Stable Isotope Analytical Techniques PDF eBook |
Author | Pier A. de Groot |
Publisher | Elsevier |
Pages | 1265 |
Release | 2004-10-27 |
Genre | Science |
ISBN | 0080533272 |
(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.