We recently bought a STA 8000, PerkinElmer, Netherlands for TG DTA and DSC where we use Nitrogen as a purge gas to run sample. I would like to run sample under Oxygen environment to burn organic shale or coal sample. How to set up the environment with the instrument where the figure below shows that there are option to add purge gas B in the sample and system. How can I set up the system to burn the sample under Oxygen. Further, there is another option 'air'. For burn will I use air or oxygen?
Please give me instruction for set up the environment for burning the sample.