Abstract
Stable isotope ratio mass spectrometry (IRMS) is a useful technique with a broad range of applications. Stable isotopes are important indicators of environmental changes (including climate), and can be used to explain the functioning of biogeochemical cycles. Examples of IRMS aplications in the fields of environmental science, paleoecology/climatology, and analysis of atmospheric pollution are presented in this paper. These studies were carried out using an isotope mass spectrometry complex (Tomsk Regional Сore Facilities of Tomsk Scientific Center of Siberian Branch of the Russian Academy of Sciences (SB RAS)) at the Institute of Monitoring of Climatic and Ecological Systems of SB RAS.
Highlights
Light elements (C, H, O, N) are important components of many compounds in the Earth’s ecosystems
The stable isotopes of the light elements are of biological interest
One of the main isotope ratio mass spectrometry (IRMS) applications is the determination of the objects origin
Summary
Light elements (C, H, O, N) are important components of many compounds in the Earth’s ecosystems. IRMS is one of various methods for determination of the concentration of these light elements, and their isotope composition in natural objects [1, 2]. Isotopes are two or more forms of an element with the same number of protons but differing numbers of neutrons. Isotopes can exist in both stable and unstable (radioactive) forms. The stable isotopes of the light elements are of biological interest. The stable isotope ratios are not the same for each element in various natural objects. Stable isotope composition can be measured commonly by elemental analyzer coupled to isotope ratio mass spectrometer. The result is related to appropriate internationally certified reference material
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