Isotope Ratio Mass Spectrometry.

@article{Muccio2009IsotopeRM,
  title={Isotope Ratio Mass Spectrometry.},
  author={Zeland Muccio and Glen P Jackson},
  journal={The Analyst},
  year={2009},
  volume={134 2},
  pages={213-22}
}
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 nitrogen can become locally enriched or depleted through a variety of kinetic and thermodynamic… CONTINUE READING