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Gas concentrator PreCon

gas concentrator
gas concentrator
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GC/MS, gas


PreCon Automated Trace Gas Pre-Concentrator Related applications: Industrial Mass Spectrometry Solve the problem of large trace gas sample sizes in gas isotope ratio MS with the Thermo Scientific™ PreCon automated trace gas pre-concentrator. Isotope ratio analysis of trace gases such as atmospheric N2O or CH4 can be hampered by the need for very large sample volumes. For example, 13C/12C measurement of CH4 can require 70L of air. The PreCon automated trace gas pre-concentrator reduces sample volume by up to three orders of magnitude and improves sample throughput by at least one order of magnitude. Make Trace Gas Analysis Easier Attaches to a Thermo Scientific™ GC IsoLink™ or Thermo Scientific™ GasBench II interfaced to a Thermo Scientific gas isotope ratio MS Both CH4 (13C/12C) and N2O (15N/14N and 18O/16O) can be measured at natural concentrations (CH4: 1700 ppb; N2O: 330 ppb) in air sample volumes <100mL Carries out sample concentration and purification (removal of H2O, CO2 and condensable (for CH4) and noncondensable (for N2O) gases), cryofocusing, and injection onto a gas chromatograph For CH4, combustion in a special combustion oven with 100% combustion efficiency and a CO2 pre-concentration step are added prior to cryofocusing Samples are bracketed by reference pulses from the automated reference gas injection system, allowing highly precise isotope ratio determination Can be loaded manually or operated fully automated using the Thermo Scientific™ GC-PAL™ autosampler with a two line needle for continuous sample transfer
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