43538 2017 eng lecture 0 -- -- -- Variations in the isotope amount composition of some elements like lithium, boron, magnesium, calcium and copper have been used as proof of provenance of a sample and to describe geological processes. Routinely, isotope compositions are determinate by mass spectrometry; the working horse of the isotope analysis. However, mass spectrometric methods are expensive, time consuming and they require a high qualified analysist. Here an alternative faster and low cost optical method for isotope ratio determination is proposed: high-resolution continuum source molecular absorption spectrometry (HR-CS-MAS). Stable isotope amount composition of X= Li, B, Mg, Ca, Cu and Sr have been determined by monitoring the absorption spectrum of their monohydride (XH) in graphite furnace HR-CS-MAS. Seminar at Princeton University Princeton, NJ, USA 16.10.2017 0 Carlos Enrique Abad Andrade eng uncontrolled Isotope eng uncontrolled High-Resolution Continuum Source Molecular Absorption Spectrometry eng uncontrolled HR-CS-MAS eng uncontrolled Isotopic shift eng uncontrolled Graphite furnace eng uncontrolled Isotope ratio Analytische Chemie Datei im Netzwerk der BAM verfügbar ("Closed Access") Präsentation