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Latest improvements in field deployable compound specific isotope analyzer based on quantum cascade lasers and hollow waveguide

Wu, Sheng and Deev, Andrei (2014) Latest improvements in field deployable compound specific isotope analyzer based on quantum cascade lasers and hollow waveguide. In: Quantum Sensing and Nanophotonic Devices XI. Proceedings of SPIE. No.8993. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. no. 89931W. ISBN 9780819499066. https://resolver.caltech.edu/CaltechAUTHORS:20180713-110347572

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Abstract

In our development of a field deployable infrared isotope ratio spectrometer (IR2) for compound specific isotope analysis (CSIA), the IR2‘s accuracy and stability have reached a stage that small fractionation in reference gas pulses generated as standard are observed easily and repeatedly. Such fine fractionation is often difficult to observe in regular Isotope Ratio Mass Spectrometer (IRMS) due to instrument drift on the order of 10s of minutes. After careful design of reference pulse sequences and long period of data collection, such fractionations are also verified in a commercial continuous flow CSIA-IRMS. Implications of the fractionation and observation process are discussed.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.2041110DOIArticle
Additional Information:© 2014 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).
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)DE-AC26-07NT42677
Subject Keywords:green photonics, quantum cascade laser; laser spectroscopy, Hollow Waveguide; Compound Specific Isotope Analyzer
Series Name:Proceedings of SPIE
Issue or Number:8993
Record Number:CaltechAUTHORS:20180713-110347572
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20180713-110347572
Official Citation:Sheng Wu, Andrei Deev, "Latest improvements in field deployable compound specific isotope analyzer based on quantum cascade lasers and hollow waveguide", Proc. SPIE 8993, Quantum Sensing and Nanophotonic Devices XI, 89931W (31 January 2014); doi: 10.1117/12.2041110; https://doi.org/10.1117/12.2041110
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:87823
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:16 Jul 2018 16:00
Last Modified:03 Oct 2019 20:00

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