How to detect simple carbon structures

[arealperson]

I'm in high school and I have a science project, I must test for carbon without testing gas emissions using the following materials.

1.) Take the center carbon rod out of a heavy duty battery
and scrape some of the powder off/ or use it directly.

2.) Create a chemical test and/or process to test the rod/powder and detect carbon without using
any gas emissions as indication of carbon:

Example nono "I can't just burn it in oxygen and test the gas for CO2"

So my question is

Question:
How can I detect the carbon without testing gas emissions,

I need the simple basic way, cheap, It's a science project.

Thanks,

 

[jbsteele]

Answer: One way to detect carbon without testing gas emissions is by using a process called elemental analysis. This process involves dissolving the carbon material in an acid solution, followed by separating the components of the solution and measuring the concentrations of different elements. Elemental analysis can be used to accurately measure the concentration of carbon in a sample.