Chicago Stable Isotope Ratio
| The U. of Chicago links for center users
**** Isotopologue scripts ****
University of Chicago has a long tradition of making stable isotope
analysis to help us understand nature, the world, and the entire
universe around us. Harold
Urey, Harmon Craig, Jacob Bigeleisen and Marie Goeppert Meyer, amongst others, were at The University of Chicago (see page 10, "Reference Materials in Isotope
Geochemistry.") We carry on those traditions, doing
conventional isotopic analysis to follow packets of water in the ocean,
to understand modern food webs and ecosystem dynamics, and to put
together constructs of paleo environments. Newer methods have
been implemented and used in projects looking at paleo-elevation which
has roles in plate techtonics and atmospheric circulation.
"call me Al"
| What we analyse
13C and 15N in organic samples (bulk)
18O and D/H in water
13C in dissolved inorganic carbon (DIC)
13C and 18O in carbonates
Clumped isotopes in CO2
|What we do:
for facility users
- starting supplies
- method development
- help with samples
- quality control
We also can do service work on samples, including limited sample preparation.
|TCEA used for running 18O on phosphates
(light stable isotopes)
Colman's stable isotope ratio mass spectrometers were setup in 2010
(thanks Burt and Ian from Thermo, Brian and the rest of the U of C gang
for getting the renovations done, and U of C and the NSF forfunding),
and real samples were being run in early 2011.
This is mainly set up to be a facility for use by the University of Chicago community, but is available for other users and limited service runs.
Acknowledgements: The purchases of the major pieces of equipment, mass spectrometers and peripherals, were supported by NSF award #0923831. "This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5)." And many thanks to the U of C for the needed renovations and added support for the laboratory.
Does anybody really know what time it is...