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I used to measure he/h using a nitrogen carrier gas and had to swap this over. I cant seem to find any literature on this.
Any help would be amazing.
Discussions about GC and other "gas phase" separation techniques.
Arne wrote:
Also, I found an application note by Agilent that uses 8.5% Hydrogen in their Helium carrier gas, so that both H2 and other gases including N2 can be measured w/o having to resort to Ar. Although, I did not quite follow why the small difference in conductivity between He and H2 is not an issue in addition to the inversion of thermal conductivity of mixtures of He and H2.
The application note:"Hydrogen Detection with a TCD using Mixed Carrier Gas on the Agilent Micro GC"
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