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CO2 in UHP Helium carrier gas
Discussions about GC-MS, LC-MS, LC-FTIR, and other "coupled" analytical techniques.
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We just got a cylinder of UHP helium that has about 10,000 baseline counts of mass 44 which I assume is carbon dioxide. Aside from obscuring the base of peaks, does CO2 cause ionization problems or can I limp along with this cylinder?
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