We routinly work with Fe carbides but using old fashion metod with
off-line combustion and dual inlet measurements.
Look for example:
Works great. As for SIMS reference material, the crystalline Fe3C
usially is not homogenous.
Marilyn Fogel писал 2016-01-15 20:36:
> Dear Colleagues,
> I have been asked to analyze some cohenite, which is iron carbide, to
> get a carbon isotope value. The iron carbide is a reactant in high
> pressure mineral physics experiments and will most likely be analyzed
> in very small samples via the ion microprobe. I have tried to analyze
> iron carbide before, just with standard elemental analysis techniques
> (around 1000°C, oxygen pulse) with little success. Incomplete
> combustion was the major symptom, but I did not try adding any of the
> tungsten or other oxides to the mix.
> If anyone has tried this and succeeded, or tried and failed, please
> let me know what worked and what did not work. It is always a good
> idea to "ground truth" samples used as ion probe standards, so I am
> interested in trying to figure this out.
> Dr. Marilyn L. Fogel, Professor of Ecology
> Chair, Life and Environmental Sciences Unit
> Faculty Director, Environmental Analytical Laboratory
> President, AGU Biogeosciences
> School of Natural Sciences
> University of California at Merced
> 5200 Lake Rd., Merced California 95343
> Phone: 209-205-6743
Dr.Vadim N. Reutsky
V.S.Sobolev Institute of geology and mineralogy
Siberian branch of Russian academy of sciences.
3, Koptug avenue