Two high-speed, portable GC systems designed for the measurement of non-methane hydrocarbons and PAN: results from the Jungfraujoch High Altitude Observatory.

@article{Whalley2004TwoHP,
  title={Two high-speed, portable GC systems designed for the measurement of non-methane hydrocarbons and PAN: results from the Jungfraujoch High Altitude Observatory.},
  author={Lisa K. Whalley and Alastair C. Lewis and J B McQuaid and Ruth M. Purvis and James D Lee and Konrad Stemmler and Christoph Zellweger and Philip Ridgeon},
  journal={Journal of environmental monitoring : JEM},
  year={2004},
  volume={6 3},
  pages={
          234-41
        }
}
Near real-time measurements of light non-methane hydrocarbons (NMHCs) and peroxyacetyl nitrate (PAN) have been performed in the free troposphere using two fast gas chromatography (GC) instruments designed for use on aircraft. A GC-helium ionisation detector (HID) system measured 15 C(2)-C(5) hydrocarbons with 5 min time resolution and a dual channel GC-Electron Capture Detector (ECD) measured PAN with 90 s resolution. Both instruments had low parts per trillion by volume (pptV) detection limits… CONTINUE READING
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