SEARCH Articles Figures Tables Absolute isotope ratios Abundance ratio of isotopes Abundance ratio, isotope Accuracy in isotope ratio Accuracy in isotope ratio measurements Accuracy, of isotope ratio measurements Accurate Determination of Isotope Ratios Ammonium nitrogen isotope ratios Amphiboles isotopic ratios Apatite isotopic ratios Applications of Isotope Ratio Measurements in Geochemistry and Geochronology Archaeology isotope ratio measurements Basalts isotopic ratios Basic Facets of Measuring Isotope Ratios Beryllium isotope ratios Beryllium isotopic ratios Bigeleisen and Mayer The Reduced Isotopic Partition Function Ratio Biology isotope ratio measurements Boron, isotope ratio measurements Box 22-3 Isotope Ratio Mass Spectrometry Calcium carbonate oxygen isotopic ratio determination Cambrian strontium isotope ratios Carbon bone collagen isotope ratios Carbon isotope ratios Carbon isotope ratios for Carbon isotopic ratio Carbon stable isotope ratio analysis Carbon stable isotope ratio test Cenozoic strontium isotope ratios Changes in element and isotope ratios upon closed-system crystallization Chromatography isotope ratio mass spectrometry Clinopyroxenes isotopic ratios Collagen isotope ratios Compositional evolution isotopic ratios Compound specific isotope ratios Compound-specific isotope ratio mass Contents 9 Isotope ratio measurements Continental crust isotopic ratios Continuous Flow Isotope Ratio Monitoring Mass Spectrometers Continuous flow isotope ratio mass spectrometry Continuous flow-isotope ratio mass spectrometry CF-IRMS) Continuous-flow isotope ratio mass spectrometer Continuous-flow isotope-ratio mass Cr Isotope Ratios and Paleoredox Conditions of the Atmosphere Cr isotope ratios Dating techniques isotopic ratios Determination of Isotope Amount Ratios Determination of isotope ratios for an element Deuterium/hydrogen isotope ratio Diamonds isotopic ratios Diet and Climate Experiments on Nitrogen Isotope Ratios of Rats Dissolved nitrogen isotope 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spectrometry GC-IRMS) Gases stable isotope ratio measurements Geochemical techniques isotope ratios Geochemistry isotope ratio measurements Geochemistry isotopic ratios Geochronology isotope ratio measurements Hafnium isotope ratio measurements Hafnium isotope ratios Halogen compounds isotope ratio patterns Halogens isotope ratios Harzburgite isotopic ratios Helium isotope ratios High-precision isotope ratio measurement How to Calculate Isotope Ratios Hydrogen isotope ratio mass spectrometry Hydrogen isotopic ratios Hydrogen stable isotope ratio analysis IRMS—See Isotope ratio mass spectrometry Indian Ocean isotopic ratios Influence isotope amount ratio determination Initial isotope ratio Instrumentation isotope ratio mass spectrometry Intermolecular, Site-specific and Positional Isotope Ratio Analysis Internal isotope ratio precision Iodine isotope ratio measurements Isotope Ratio Measurements and their Application Isotope Ratio Measurements by Gas Source Mass Spectrometry Isotope Ratio Measurements by Laser Ablation ICP-MS Isotope Ratio Measurements by Quadrupole based ICP-MS Isotope Ratio Measurements in Environmental Samples Isotope Ratio Measurements of Biological Systems Isotope Ratio Monitoring GC-MS Isotope amount ratio determination Isotope and trace-element ratios Isotope approximate ratios Isotope dilution ratios Isotope rate ratios Isotope ratio analysis Isotope ratio analysis mixture Isotope ratio analysis spectrometry method Isotope ratio analysis standards Isotope ratio applications Isotope ratio applications, quality control Isotope ratio biological production Isotope ratio calculation Isotope ratio data Isotope ratio data, standardization Isotope ratio in sediments Isotope ratio mass spectrometry Isotope ratio mass spectrometry CF-IRMS Isotope ratio mass spectrometry DI-IRMS Isotope ratio mass spectrometry advantages Isotope ratio mass spectrometry analytical considerations Isotope ratio mass spectrometry animals Isotope ratio mass spectrometry 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technique ratio Lead isotope ratios in majolica Lead isotopic ratios, measurement Lead source materials, isotope ratios Lead stable isotope ratios Liquid chromatography-isotope ratio mass spectrometry Lithium, isotope ratio Long-lived radionuclides isotope ratio measurements Magnesium isotope ratio measurements Magnetogyric ratio of isotopes, 8 Mantle Noble Gas (Isotopic Ratios) Mass Spectrometer for Isotope Ratio Analysis Mass spectrometer isotope ratio Mass spectrometry isotopic abundance ratios Mass spectrometry nitrogen isotope ratio determination Mass spectrometry, for isotope ratios Mass spectrometry, isotope ratio (IRMS Matching isotopic ratios Measurement isotope amount ratio determination Measurements of isotopic ratios Measuring Isotope Ratios with Single-Collector ICP-MS Meteorites lead isotope ratios Mid-ocean ridge basalts isotopic ratios Molecular formula isotope ratio method Molybdenum Isotope Ratios and Global Ocean Paleoredox Molybdenum isotope ratios Molybdenum, isotope ratio measurement Natural products, isotope ratios Neodymium isotope ratios Neodymium/strontium isotopic ratios Nitrite isotope ratios Nitrogen isotope ratio Nitrogen isotope ratios cycling processes Nitrogen isotope ratios for Nitrogen isotope ratios measurement procedure Nitrogen isotope ratios models Nitrogen isotope ratios sedimentary record Nitrogen isotope ratios, instrumental North Atlantic Deep Water neodymium isotope ratio Oceanic peridotites isotopic ratios Off-craton mantle isotopic ratios Olivine isotopic ratios Open-system exchange isotopic ratios Ophiolites isotopic ratios Osmium isotope ratio Oxygen burning isotope ratios Oxygen isotope ratio precipitation Oxygen isotope ratios Oxygen isotope ratios for Oxygen isotopic ratios Oxygen stable isotope ratios, sourcing Pacific Ocean isotopic ratios Pb isotopes ratios Pb-isotopic ratios Peridotites isotopic ratios Phlogopite isotopic ratios Planetary differentiation isotopic ratios Plutonium isotope ratio measurements Pore waters isotopic ratios from calcite Pyrite isotope ratios Pyroxenites isotopic ratios Quality Control in Isotope Ratio Applications Radiogenic isotope initial ratio Rate constants) isotopic ratio Ratios of Isotopic Abundances Ratios of Stable Isotopes Rubidium isotope ratio measurements Rutile isotopic ratios SIRA, stable isotope ratio analysis Serum calcium isotope ratios Silicon isotope ratio measurements Single isotope ratio precision Single isotope ratios measurement Single spike equation using isotope ratios Spectroscopic isotope ratios Spectroscopy IRMS (isotope ratio mass Stable carbon isotope ratios animals Stable carbon isotope ratios collagen Stable carbon isotope ratios diets Stable isotope ratio analysis Stable isotope ratio determination Stable isotope ratio mass spectrometers Stable isotope ratio test Stable isotope ratios Stable isotope ratios carbon Stable isotopic ratio analysis Stable nitrogen isotope ratios Stable nitrogen isotope ratios collagen Standardization of the Isotope Ratio Data Standards for Isotope Ratios Strontium isotope ratios Strontium isotopes initial ratios Strontium isotopic ratios Subduction zones isotopic ratios Sulfate isotope ratios Sulfur, isotope ratios Sulphur isotope ratios The Development of Modern Methods to Calculate Reduced Isotopic Partition Function Ratios The Principles of Isotope Ratio Monitoring Thorium isotope ratio measurements Thorium isotopes ratios Tungsten, isotope ratio measurements Uranium isotope ratios Uranium isotopic ratios Urinary isotopic ratios Used to Measure Accurate Isotope Ratios Uses of Isotope Ratios Variation in Isotope Ratios Variations of Stable Isotope Ratios in Nature Volatile compounds stable isotope ratio measurements Xenoliths, mantle-derived isotopic ratios Xenon isotopic ratios