Chemical stoichiometry and oxidation of titanium carbides or tungsten carbides play crucial roles for production yield and product quality. The inductar EL cube is the world`s first elemental analyzer, which is made for accurate carbon and oxygen determination from some ppm to percent levels in one single instrument. Moreover, Elementar developed an advanced crucible design which is ideal for clean combustion of ceramic powders. Thus, even highly reactive, fine powders can be combusted in oxygen atmosphere without any tedious cleaning operation. Furthermore, results are more accurate and reliable due to the clean combustion.