CARBON ISOTOPIC COMPOSITIONS IN CARBON DIOXIDE MEASURED BY MICRO-LASER RAMAN SPECTROSCOPY
Abstract
We have prepared a series of12CO2/13CO2 binary mixtures as standard samples at room temperature. Using micro-laser Raman spectroscopy, it was found that the relationship between the12CO2 mole fractions and the peak area ratios of12CO2/13CO2 in the Raman spectra of CO2 binary mixtures showed a polynomial correlation. The establishment of the experimental working curve paves the way for estimating the mole fractions of each individual fluid inclusion and determining13C/12C and δ13C using micro-Raman spectroscopy. The Raman spectra of12CO2 and13CO2 showed a characteristic peak at 1348 cm-1 with an argon laser at 785 nm, which is perhaps due to the formation of dimers.
About the Authors
J. -J. Li
School of Earth Sciences and Resources, Chang’an University
Russian Federation
Russian Federation
R. -X. Li
School of Earth Sciences and Resources, Chang’an University
Russian Federation
Russian Federation
H. . Dong
Xi’an Center of Geological Survey, China Geological Survey
Russian Federation
Russian Federation
Zh. -H. Wang
Xi’an Center of Geological Survey, China Geological Survey
Russian Federation
Russian Federation
B. -S. Zhao
Xi’an Center of Geological Survey, China Geological Survey
Russian Federation
Russian Federation
N. . Wang
School of Earth Sciences and Resources, Chang’an University
Russian Federation
Russian Federation
J. -H. Cheng
School of Earth Sciences and Resources, Chang’an University
Russian Federation
Russian Federation
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Review
For citations:
Li J.-., Li R.-., Dong H., Wang Zh.-., Zhao B.-., Wang N., Cheng J.-. CARBON ISOTOPIC COMPOSITIONS IN CARBON DIOXIDE MEASURED BY MICRO-LASER RAMAN SPECTROSCOPY. Zhurnal Prikladnoii Spektroskopii. 2017;84(2):214-218. (In Russ.)
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