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ANALYSE DILUTION ISOTOPIQUE [4 records]

Record 1 2017-12-29

English

Subject field(s)
  • Chemistry
DEF

A method of isotope dilution analysis in which the final isotopic abundance is estimated from the amount of the nuclide present in a known quantity of the relevant element separated from the sample, where this quantity is smaller than the total amount of that element present in the sample.

French

Domaine(s)
  • Chimie
DEF

Méthode d'analyse par dilution isotopique qui évalue la teneur isotopique finale d'un élément, préalablement isolé de l'échantillon, en fonction de la quantité de nucléide qui s'y trouve.

Spanish

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Record 2 2011-12-12

English

Subject field(s)
  • Scientific Measurements and Analyses
  • Radiation Protection
  • Geophysics
CONT

Geochronology questions. Solari and Schaff are generally critical of our geochronologic methods because the uncertainties of LA-ICPMS (Laser-Ablation, Inductively Coupled Plasma Mass Spectrometry) analyses are greater than the errors that they and others have generated by ID-TIMS (Isotope Dilution - Thermal Ionization Mass Spectrometry) analysis.

OBS

isotope dilution thermal ionization mass spectrometry (ID-TIMS) analysis: term and shortened form used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Mesures et analyse (Sciences)
  • Radioprotection
  • Géophysique
OBS

analyse par dilution isotopique et spectrométrie de masse à thermoionisation : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

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Record 3 2010-07-20

English

Subject field(s)
  • Chemistry
DEF

A method of quantitative analysis based on the measurement of the isotopic abundance of a nuclide after isotopic dilution with the sample to be analysed.

French

Domaine(s)
  • Chimie
DEF

Méthode d'analyse quantitative fondée sur la mesure de la teneur isotopique d'un nucléide après dilution isotopique avec l'échantillon qui doit être analysé.

Spanish

Save record 3

Record 4 2009-11-17

English

Subject field(s)
  • Analytical Chemistry
  • Atomic Physics

French

Domaine(s)
  • Chimie analytique
  • Physique atomique
CONT

[...] l'analyse par activation peut être appliquée à la dilution isotopique lorsqu'un élément possède au moins deux isotopes stables susceptibles de donner par irradiation deux radio-isotopes identifiables et mesurables, si possible par spectrométrie [gamma]. La méthode, désignée sous le sigle SIDAA (stable isotope dilution activation analysis) peut être utilisée pour déterminer une dizaine d'éléments dont quatre simultanément par irradiation aux photons [gamma].

Spanish

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