17 June 2014

Direct Characterization of Porphyrins in Petroleum from Natural Seeps

Atmospheric pressure photoionization (APPI) Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) provides ultrahigh resolving power (m/Δm50% > 1,000,000 at m/z 500) and sub-ppm mass error (50 ppb) required to identify nickel porphyrin isotopes for unambiguous elemental composition assignment. We also report the first simultaneous identification and categorization of both vanadyl and nickel porphyrins in the same sample, without prior sample fractionation.

For more information contact Amy McKenna.

Details

  • Research Area: Chemistry, Geochemistry
  • Research Initiatives: Energy
  • Facility / Program: ICR
  • Year: 2014
Last modified on 17 April 2015