Quantitative analysis and measurement of carbon isotopic compositions in individual fluid inclusions by micro-laser Raman spectrometry

2016 ◽  
Vol 8 (37) ◽  
pp. 6730-6738 ◽  
Author(s):  
Jiajia Li ◽  
Rongxi Li ◽  
Bangsheng Zhao ◽  
Ning Wang ◽  
Jinghua Cheng
Keyword(s):  
Raman Spectroscopy ◽  
Quantitative Analysis ◽  
Fluid Inclusions ◽  
Laser Raman Spectroscopy ◽  
Raman Spectrometry ◽  
Laser Raman ◽  
Isotopic Compositions ◽  
Carbon Isotopic ◽  
Non Destructive

Micro-laser Raman spectroscopy is a non-destructive technique to quantitatively determine the carbon isotopic compositions of CO2 in individual fluid inclusions.

Carbon Isotopic Compositions in Carbon Dioxide Measured By Micro-Laser Raman Spectroscopy

2017 ◽  
Vol 84 (2) ◽  
pp. 237-241 ◽  
Author(s):  
J.-J. Li ◽  
R.-X. Li ◽  
H. Dong ◽  
Zh.-H. Wang ◽  
B.-S. Zhao ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Raman Spectroscopy ◽  
Laser Raman Spectroscopy ◽  
Laser Raman ◽  
Isotopic Compositions ◽  
Carbon Isotopic

In situ quantitative analysis of individual H2O–CO2 fluid inclusions by laser Raman spectroscopy

2007 ◽  
Vol 237 (3-4) ◽  
pp. 255-263 ◽  
Author(s):  
Tristan Azbej ◽  
Matthew J. Severs ◽  
Brian G. Rusk ◽  
Robert J. Bodnar
Keyword(s):  
Raman Spectroscopy ◽  
Quantitative Analysis ◽  
Fluid Inclusions ◽  
Laser Raman Spectroscopy ◽  
Laser Raman

scholarly journals Quantification of Solute Composition in H2O-NaCl-CaCl2 Solutions Using Cryogenic 2D Raman Mapping

Minerals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1043
Author(s):  
Haixia Chu ◽  
Guoxiang Chi ◽  
Chunji Xue
Keyword(s):  
Raman Spectroscopy ◽  
Quantitative Analysis ◽  
Fluid Inclusions ◽  
Molar Fraction ◽  
Mapping Technique ◽  
Raman Mapping ◽  
Point Analysis ◽  
Single Inclusion ◽  
Solute Composition ◽  
Non Destructive

Various analytical techniques have been developed to determine the solution composition of fluid inclusions, including destructive, non-destructive, single-inclusion, and bulk-inclusion methods. Cryogenic Raman spectroscopy, as a non-destructive and single-inclusion method, has emerged as a potentially powerful tool of quantitative analysis of fluid inclusion composition. A method of point analysis using cryogenic Raman spectroscopy has been previously proposed to quantitatively estimate the solute composition of H2O-NaCl-CaCl2 solutions, but there are uncertainties related to heterogeneity of frozen fluid inclusions and potential bias in the processing of Raman spectra. A new method of quantitative analysis of solute composition of H2O-NaCl-CaCl2 solutions using Raman mapping technology is proposed in this study, which can overcome the problems encountered in the point analysis. It is shown that the NaCl/(NaCl + CaCl2) molar ratio of the solution, X(NaCl, m), can be related to the area fraction of hydrohalite over hydrohalite plus antarcticite, Fhydrohalite, by the equation X(NaCl, m) = 1.1435 Fhydrohalite − 0.0884, where Fhydrohalite = hydrohalite area/(hydrohalite area + antarcticite area). This equation suggests that the molar fraction of a salt component may be estimated from the fraction of the Raman peak area of the relevant hydrate. This study has established a new way of estimating solute composition of fluid inclusions using cryogenic Raman mapping technique, which may be extended to other solutions.

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