The gases from watter spitting process and I'm trying to measure the H2 by GC. Could anyone tell me what is the best temperature to do that using column porapak q?
For using a Shimadzu GC-2010 Plus with a Porapak-Q column (30m) to separate H₂, CO₂, N₂, and O₂, try the following temperature program:
Isothermal Method
- Temperature: 50°C
- Hold Time: 10-20 minutes
Temperature Program
1. Initial Temperature: 50°C
2. Initial Hold: 5 minutes
3. Ramp: 10°C/min to 150°C
4. Final Hold: 10 minutes
Additional Tips
- Detector: Use a Thermal Conductivity Detector (TCD).
- Carrier Gas: Helium or Argon, flow rate around 20-30 mL/min.
These settings should help you achieve good separation of H₂, CO₂, N₂, and O₂. Adjust the temperature and flow rate as needed based on your specific results.
Yes, the described method using a Thermal Conductivity Detector (TCD)