The Sixth International Symposium on Isotopomers (ISI-2012)

Date
2012-06-18 - 08:00 - 2012-06-18
Location
Carnegie Institution of Washington, Washington, DC, USA
Website

 

 

 

 

Dates:  18-22 June 2012

Location:  Carnegie Institution of Washington, Washington, DC, USA

Group Photo:  Front row, L to R - Nathaniel Ostrom, Huiming Bao, Doug Rumble, Naohiro Yoshida, Shuhei Ono (Organizers of ISI-2012 and Founder, Yoshida)

 

 

 

Carbon-bearing Molecules Featured at Sixth International Symposium on Isotopomers:

The ISI 2012 program with abstracts is available at:

 <https://www.gl.ciw.edu/news/2011/7/25/international-symposium-isotopomers-2012-meeting> . 

The Sixth International Symposium on Isotopomers (ISI 2012) featured advances in instrumentation that are revolutionizing the field of stable isotope geochemistry. Carbon-bearing molecules with doubly-substituted rare isotopes was a persistent theme of ISI 2012, which was organized by Douglas Rumble of the Geophysical Laboratory of the Carnegie Institution of Washington and co-sponsored by the Deep Carbon Observatory.

 

More than 90 scientists from 14 countries participated in ISI 2012 and their expertise spanned an unusually wide range of disciplines—including atmospheric chemistry, chemical oceanography, organic and inorganic geochemistry, and geology. All participants were united in their commitment to use the light stable isotopes of H, C, N, O, and S to understand material cycles among the atmosphere, biosphere, hydrosphere, lithosphere, and mantle that make life possible on Earth.

ISI 2012 featured many papers of special interest to the Deep Carbon Observatory. Paul Magyar, representing John Eiler’s group at the California Institute of Technology, described the resolution of a shoulder of the ion beam of 13CDH3, a doubly-isotopically-substituted molecule of methane incorporating both 13C and D (2H), whose abundance is sensitive to temperature of synthesis. Quantitative analysis of the abundances of such molecules with a new generation of high mass-resolution mass spectrometers likely will lead to insights into the formation mechanisms of methane. Kiyoshi Tsuji from Naohiro Yoshida’s group at the Tokyo Institute of Technology reported the use of a mid-infrared spectrograph to detect and measure the abundance of the 13CDHisotopologue as a possible alternative to mass spectrometry.

 

 

Isotopic measurements of carbon-bearing molecules with doubly-substituted rare isotopes have potential applications related to the production of oil and natural gas. Anne-Lise Jourdan (Imperial College London) and Ulrika Wacker (Univ. Frankfurt) discussed in separate presentations the analysis of the carbonate ion,13C18O16O16O(-2) in carbonate minerals of reservoir rocks to characterize diagenesis and hydrocarbon reservoirs. Monica Arienzo (University of Miami) combined analyses of fluid inclusions with measurements of 13C18O16O16O(-2)in speleothems to obtain a temperature record of abrupt, cold, climatic fluctuations in the North  Atlantic.

A defining feature of ISI meetings is the application of novel technologies to new analytical protocols. In keeping with this tradition, Gérald Remaud, Université de Nantes, described the use of Nuclear Magnetic Resonance Spectroscopy (NMR) to measure the distribution of 13C-isotopes substituted in non-equivalent sites of organic molecules. 

 

Isotopic measurements of carbon-bearing molecules with doubly-substituted rare isotopes have potential applications to the production of oil and natural gas. Anne-Lise Jourdan (Imperial College London) and Ulrika Wacker (Univ. Frankfurt) discussed in separate presentations the analysis of the carbonate ion,13C18O16O16O(-2) in carbonate minerals of reservoir rocks to characterize diagenesis and hydrocarbon reservoirs. Monica Arienzo (University of Miami) combined analyses of fluid inclusions with measurements of 13C18O16O16O(-2) in speleothems to obtain a temperature record of abrupt, cold, climatic fluctuations in the North  Atlantic.

A defining feature of ISI meetings is the application of novel technologies to new analytical protocols. Gérald Remaud, Université de Nantes, described the use of Nuclear Magnetic Resonance Spectroscopy (NMR) to measure the distribution of 13C-isotopes substituted in non-equivalent sites of organic molecules. 

Photos (top to bottom): 
1) Group Photo of ISI-2012 Participants
2) Naohiro Yoshida reports on voluntary efforts of Geochemical Society of Japan to measure Fukushima radioactive fallout 
3) Organizer Doug Rumble speaking at ISI-2012 Banquet
4) Mark Thiemens, ISI Founder Naohiro Yoshida, and Deep Carbon Observatory Director Craig Schiffries discuss radioactive fallout from Fukushima with Carnegie Institution for Science President Richard Meserve 

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