Moving-wire device for carbon isotopic analyses of nanogram quantities of nonvolatile organic carbon.

@article{Sessions2005MovingwireDF,
  title={Moving-wire device for carbon isotopic analyses of nanogram quantities of nonvolatile organic carbon.},
  author={Alex L Sessions and Sean P. Sylva and John M. Hayes},
  journal={Analytical chemistry},
  year={2005},
  volume={77 20},
  pages={6519-27}
}
We describe a moving-wire analyzer for measuring 13C in dissolved, involatile organic materials. Liquid samples are first deposited and dried on a continuously spooling nickel wire. The residual sample is then combusted as the wire moves through a furnace, and the evolved CO2 is analyzed by continuous-flow isotope ratio mass spectrometry. A typical analysis requires 1 microL of sample solution and produces a CO2 peak approximately 5 s wide. The system can measure "bulk" delta13C values of… CONTINUE READING

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