Published February 4, 2013
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A field-deployable compound-specific isotope analyzer based on quantum cascade laser and hollow waveguide
- Creators
- Wu, Sheng
- Deev, Andrei
Abstract
A field deployable Compound Specific Isotope Analyzer (CSIA) coupled with capillary chromatogrpahy based on Quantum Cascade (QC) lasers and Hollow Waveguide (HWG) with precision and chemical resolution matching mature Mass Spectroscopy has been achieved in our laboratory. The system could realize 0.3 per mil accuracy for ^(12)C/^(13)C for a Gas Chromatography (GC) peak lasting as short as 5 seconds with carbon molar concentration in the GC peak less than 0.5%. Spectroscopic advantages of HWG when working with QC lasers, i.e. single mode transmission, noiseless measurement and small sample volume, are compared with traditional free space and multipass spectroscopy methods.
Additional Information
© 2013 Society of Photo-Optical Instrumentation Engineers (SPIE). We gratefully acknowledge the financial support from DOE-RPSEA project titled 'Novel Gas Isotope Interpretation Tools to Optimize Gas Shale Production' (DE-AC26-07NT42677).Attached Files
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Additional details
- Eprint ID
- 87624
- Resolver ID
- CaltechAUTHORS:20180706-154730390
- DE-AC26-07NT42677
- Department of Energy (DOE)
- Created
-
2018-07-09Created from EPrint's datestamp field
- Updated
-
2021-11-15Created from EPrint's last_modified field
- Series Name
- Proceedings of SPIE
- Series Volume or Issue Number
- 8631