General Equation for Multiple Spiking Isotope Dilution Mass Spectrometry
نویسندگان
چکیده
منابع مشابه
Sensitivity Analysis for Speciated Isotope Dilution Mass Spectrometry
Speciated isotope dilution mass spectrometry is a technique that uses mass spectrometer readings to determine the species-specific isotopic profile of a chemical element in solution. The problem admits several approaches, each with its own computational quirks. In our view, matrix methods are attractive because they are conceptually clear, easy to implement, and amenable to formal analysis. The...
متن کاملMass Spectrometry Inorganic Trace Analysis by Isotope Dilution Mass Spectrometry-New Frontiers
Isotope dilution mass spectrometry (IDMS) is used extensively at NBS in the certification of elemental concentrations in Standard Reference Materials. It is regarded at NBS as a "definitive method," that is, a method of proven high accuracy. Since the theme of this symposium is accuracy in trace element analysis, it is appropriate to review the role IDMS plays in accurate inorganic analysis. Th...
متن کاملIsotope Ratio Mass Spectrometry.
Isotope Ratio Mass Spectrometry (IRMS) is a specialized technique used to provide information about the geographic, chemical, and biological origins of substances. The ability to determine the source of an organic substance stems from the relative isotopic abundances of the elements which comprise the material. Because the isotope ratios of elements such as carbon, hydrogen, oxygen, sulfur, and...
متن کاملThermal-ionization isotope-dilution mass spectrometry as a definitive method for determination of potassium in serum.
Thermal-ionization isotope-dilution mass spectrometry is a highly precise and accurate method for the determination of potassium concentrations in serum. Although not suited for routine use because of the time and expense required, the technique provides an extremely valuable tool for the characterization of reference materials and for evaluating other analytical methods. The technique has rece...
متن کاملIsotope-Dilution Mass Spectrometry for Quantification of Urinary Active Androgens Separated by Gas Chromatography
Cross reacting antibodies can cause an overestimation of the results of immunoassays. Therefore, alternative methods are needed for the accurate quantification of steroids. Gas chromatography combined with isotope-dilution mass spectrometry (GC-IDMS) is developed to quantify urinary active androgens, testosterone, epitestosterone and dihydrotestosterone, which are clinically relevant androgens ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Analytical Chemistry
سال: 2009
ISSN: 0003-2700,1520-6882
DOI: 10.1021/ac900205b