does anyone have/develop a method for method/CO2 analysis using HP-PLOT U column, TCD and helium as a carrier gas?
Here's few links that may help you out. In first presentation there's reference to Application Note 228-387 where they have used PLOT Q.
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Please provide your system details also so according solution will provide.
If in your sample CO2 is greater then 20 ppm then without methanizer you can got the response or if want lower detection then you want methanizer.
Oven- 40 C ----- 6 min then 20 C upto 200C final hold 1 min.