Evaluation of carrier gases for high-precision water isotopic measurements by cavity ring-down laser spectroscopy

2016 ◽  
Vol 44 (4) ◽  
pp. 410-424
Author(s):  
Meng Xing ◽  
Weiguo Liu
Keyword(s):  
Laser Spectroscopy ◽  
High Precision ◽  
Carrier Gases ◽  
Isotopic Measurements ◽  
Cavity Ring Down

High-precision measurements of δ2H, δ18O and δ17O in water with the aid of cavity ring-down laser spectroscopy

2019 ◽  
Vol 55 (3) ◽  
pp. 290-307 ◽  
Author(s):  
Anna Pierchala ◽  
Kazimierz Rozanski ◽  
Marek Dulinski ◽  
Zbigniew Gorczyca ◽  
Michal Marzec ◽  
...  
Keyword(s):  
Laser Spectroscopy ◽  
High Precision ◽  
Precision Measurements ◽  
Cavity Ring Down

High-precision Ru isotopic measurements by multi-collector ICP-MS

The Analyst ◽  
2002 ◽  
Vol 127 (6) ◽  
pp. 775-780 ◽  
Author(s):  
Harry Becker ◽  
Claude Dalpe ◽  
Richard J. Walker
Keyword(s):  
High Precision ◽  
Icp Ms ◽  
Isotopic Measurements

Towards high precision in-trap laser spectroscopy of highly charged ions

Laser 2009 ◽  
2010 ◽  
pp. 81-91
Author(s):  
Zoran Andjelkovic ◽  
Shailen Bharadia ◽  
Bettina Sommer ◽  
Manuel Vogel ◽  
Wilfried Nörtershäuser
Keyword(s):  
Laser Spectroscopy ◽  
High Precision ◽  
Highly Charged Ions ◽  
Charged Ions

scholarly journals H<sub>2</sub>S interference on CO<sub>2</sub> isotopic measurements using a Picarro G1101-i cavity ring-down spectrometer

2015 ◽  
Vol 8 (10) ◽  
pp. 4075-4082 ◽  
Author(s):  
K. Malowany ◽  
J. Stix ◽  
A. Van Pelt ◽  
G. Lucic
Keyword(s):  
Hydrogen Sulfide ◽  
Field Trials ◽  
Spectral Lines ◽  
Robust Method ◽  
Controlled Experiments ◽  
Δ13c Value ◽  
Future Work ◽  
Isotopic Measurements ◽  
Standard Gas ◽  
Cavity Ring Down

Abstract. Cavity ring-down spectrometers (CRDSs) have the capacity to make isotopic measurements of CO2 where concentrations range from atmospheric (~ 400 ppm) to 6000 ppm. Following field trials, it has come to light that the spectrographic lines used for CO2 have an interference with elevated (higher than ambient) amounts of hydrogen sulfide (H2S), which causes significant depletions in the δ13C measurement by the CRDSs. In order to deploy this instrument in environments with elevated H2S concentrations (i.e., active volcanoes), we require a robust method for eliminating this interference. Controlled experiments using a Picarro G1101-i optical spectrometer were done to characterize the H2S interference at varying CO2 and H2S concentrations. The addition of H2S to a CO2 standard gas reveals an increase in the 12CO2 concentration and a more significant decrease in the 13CO2 concentration, resulting in a depleted δ13C value. Reacting gas samples containing H2S with copper prior to analysis can eliminate this effect. Models post-dating the G1101-i carbon isotope analyzer have maintained the same spectral lines for CO2 and are likely to have a similar H2S response at elevated H2S concentrations. It is important for future work with CRDS, particularly in volcanic regions where H2S is abundant, to be aware of the H2S interference on the CO2 spectroscopic lines and to remove all H2S prior to analysis. We suggest employing a scrub composed of copper to remove H2S from all gas samples that have concentrations in excess of 1 ppb.

Rapid-Swept CW Cavity Ring-down Laser Spectroscopy for Carbon Isotope Analysis

2006 ◽  
Vol 43 (4) ◽  
pp. 311-315 ◽  
Author(s):  
Hideki TOMITA ◽  
Kenichi WATANABE ◽  
Yu TAKIGUCHI ◽  
Jun KAWARABAYASHI ◽  
Tetsuo IGUCHI
Keyword(s):  
Carbon Isotope ◽  
Laser Spectroscopy ◽  
Isotope Analysis ◽  
Carbon Isotope Analysis ◽  
Cavity Ring Down
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