Results 301 to 310 of about 70,014 (336)

Spiking isotope dilution

Journal of Radioanalytical Chemistry, 1975
The isotope dilution method, which is based on the isolation of a constant substoichiometric amount, can be completed by a group of radiometric techniques in which this amount is a function of the concentration to be determined. It is convenient then to plot the experimental data in such a way that a straight line is obtained.
H. A. Das, H. Köhnemann, W. Mark
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Isotope dilution assay for biotin

Analytical Biochemistry, 1974
Abstract An isotope dilution assay for biotin, sensitive in the 1–10 ng range, is described.
K, Dakshinamurti, A D, Landman, L, Ramamurti, R J, Constable   +3 more
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Isotope Dilution Analysis

1971
This chapter describes the use of radioactive isotope dilution analysis in combination with various analytical separation techniques for the identification and quantitative determination of a labeled substance and its metabolite(s) in laboratory animals and man.
Vincent T. Oliverio, Anthony M. Guarino
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Determination of Copper by Isotopic Dilution

Biological Trace Element Research, 1994
A rapid and selective method was used for the determination of copper by isotopic dilution employing substoichiometric extraction with dithizone in carbon tetrachloride. The appropriate pH range for the substoichiometric extraction was 2-7. In the analysis, even a large excess of elements forming extractable complexes with dithizone does not interfere.
E S, Faquim, C S, Munita
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Isotope dilution analysis for speciation

Analytical and Bioanalytical Chemistry, 2003
The advantages of isotope dilution analysis for speciation in the metal species are described. The species-unspecific mode of different species provides accurate and precise determination of the element, because the quantification parameter is an isotope ratio, in spite of an absoluted intensity.
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Isotope Dilution Mass Spectrometry

2013
Isotope Dilution Mass Spectrometry (IDMS) has become an essential tool in research laboratories and is increasingly used in routine analysis labs (including environmental, food safety and clinical applications). This is the first textbook to present a comprehensive and instructive view of the theory and applications of this growing technique.
Jose Alonso, Pablo Gonzalez
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Isotope dilution mass spectrometry

International Journal of Mass Spectrometry and Ion Processes, 1992
Abstract In the past isotope dilution mass spectrometry (IDMS) has usually been applied using the formation of positive thermal ions of metals. Especially in calibrating other analytical methods and for the certification of standard reference materials this type of IDMS became a routine method.
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The accuracy of isotope dilution methods

The International Journal of Applied Radiation and Isotopes, 1961
BS>The accuracy of quantitative analyses by various isotope dilution methods is discussed. The most favorable amounts of dilution are derived under the assumption that the relative error, delta S/S, in measuring a specific activity, S, is independent of S. (auth)
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Principles of Isotope Dilution Assays

Analytical Chemistry, 1957
Radioisotope dilution assay methods have attracted much attention since the first analytical symposium on this subject ten years ago. Isotope dilution assays of a wide variety of substances, including many biologically important substances such as vitamins, antibiotics, and insecticides, have been developed. An isotope dilution assay for vitamin B12 is
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Carbonate clumped isotope analysis using isotope dilution

International Journal of Mass Spectrometry, 2022
Sanchita Banerjee, Prosenjit Ghosh
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