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<h2>High Resolution Mass Spectrometer for Trace Gas Analysis</h2>

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Contacts:  <br>
<nobr>Dr. Eric Saltzman (esaltzma@uci.edu; 949 824-3936)</nobr><br>
<nobr>Dr. Murat Aydin (maydin@uci.edu; 949 824-6174)</nobr><br>
<nobr>Dr. John Greaves (jgreaves@uci.edu; 949 824-3453)</nobr><br>
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Selected ion chromatograms from analysis of selected trace gases in 51.5 ccSTP of air from Palmer Station, Antarctica (CMDL flask 0075-22 collected on 04/11/03) using the UCI Autospec mass spectrometer.  The mixing ratios for the gases shown are (in pmol mol-1):  C2H6 144.1, C3H8 27.5, OCS 427.4, F-12 526.4, CH3Cl 510.7, C4H10 8.7, CH3Br 6.5, CH3CN 6.9, DMS 3.4, CS2 6.7
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Location: <br>
1212 Croul Hall<br>
Department of Earth System Science<br>
University of California, Irvine<br>
Irvine, CA 91697-3100
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Applications: &nbsp;&nbsp;&nbsp; The instrument is configured for trace gas analysis in small samples (<100 cc STP) of air.  To date, the types of samples analyzed on the instrument include: 1) surface air flask samples from the NOAA/CMDL network, 2) flask samples of air pumped from polar firn, and 3) air samples extracted from the bubbles in polar ice cores.  The instrument has been configured and calibrated for the following gases: ethane, propane, butane, OCS, CS2, CH3Cl, CH3Br, CFC-12, CH3CN, and DMS.  Additional gases are gradually being added to the list.
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Department of Earth System Science<br />
University of California, Irvine<br />
Croul Hall<br />
Irvine, CA 92697-3100<br />
telephone: (949) 824-8794<br />
fax: (949) 824-3874<br />
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