Abstract—Carbon stable isotope ratios measurement serves as an important implement for environmental geochemical processes study. While Mass spectrometry is commonly used for the task, FTIR (Fourier Transform Infra-Red) spectroscopy has the potential for determining these isotopic ratios with the advantage of simple in-situ measurements. On-line analysis enables continuous processes monitoring and decreases sampling errors, caused by the sampling and the laboratory analysis procedures (e.g. for measurement in the mass spectrometer).
Variance in carbon stable isotope ratios are results of water-rock interactions, phase transitions, changes in ambient temperature and humidity, biochemical reactions and more. In this study carbon isotope ratios were measured using FTIR spectrophotometer in both field and in laboratory conditions and corroboration of the analysis validity was done by Mass spectrometer measurements
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Index Terms—C13, carbon isotopes, FTIR, in-situ measurements.
Ira Litvak is with the he Melbourne University Department of Infrastructure Engineering, Australia (e-mail: irachkalitvak@gmail.com).
Dr. Yaakov Anker is with the Department of Chemical and Material Engineering at the Ariel University and the Environmental Department of the Eastern Israel Regional R&D Center, Israel (e-mail: kobia@ariel.ac.il).
Prof. Haim Cohen is with the Department of Biological Chemistry (Faculty of Natural Sciences) at Ariel University and the Department of Chemistry at Ben-Gurion University of the Negev in Beer Sheba, Israel (e-mail: hcohen@ariel.ac.il).
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Cite: Ira Litvak, Yaakov Anker, and Haim Cohen, "In-Situ Measurements of Carbon Stable Isotopes Ratio in Karstic Caves by FTIR Spectroscopy," International Journal of Chemical Engineering and Applications vol. 9, no. 3, pp. 101-106, 2018.
