@article{
 title = {Ion funnel augmented Mars atmospheric pressure photoionization mass spectrometry for in situ detection of organic molecules.},
 type = {article},
 year = {2014},
 identifiers = {[object Object]},
 keywords = {ion funnel,mars,photoionization},
 pages = {1832-40},
 volume = {25},
 websites = {http://www.ncbi.nlm.nih.gov/pubmed/24986759},
 month = {11},
 id = {8221f6db-ec09-36a3-9d3a-79f6b58e36b2},
 created = {2014-11-13T17:56:03.000Z},
 accessed = {2014-10-19},
 file_attached = {true},
 profile_id = {5a758209-74fb-3a9c-b322-2ae7f22f7b6c},
 group_id = {63e349d6-2c70-3938-9e67-2f6483f6cbab},
 last_modified = {2014-11-18T21:14:35.000Z},
 read = {false},
 starred = {false},
 authored = {false},
 confirmed = {true},
 hidden = {false},
 abstract = {Laser desorption is an attractive technique for in situ sampling of organics on Mars given its relative simplicity. We demonstrate that under simulated Martian conditions (~2.5 Torr CO2) laser desorption of neutral species (e.g., polycyclic aromatic hydrocarbons), followed by ionization with a simple ultraviolet light source such as a discharge lamp, offers an effective means of sampling organics for detection and identification with a mass spectrometer. An electrodynamic ion funnel is employed to provide efficient ion collection in the ambient Martian environment. This experimental methodology enables in situ sampling of Martian organics with minimal complexity and maximum flexibility.},
 bibtype = {article},
 author = {Johnson, Paul V and Hodyss, Robert and Beauchamp, J L},
 journal = {Journal of the American Society for Mass Spectrometry},
 number = {11}
}

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