The direct combustion IR-spectrometric method was applied to the mensurement of carbon in positive powder of alkaline Zn/MnO_2 batteries and the (ratio) of MnO_2 to C was calculated.

• 利用直接燃烧-红外吸收光谱法测定碱锰电池正极粉中的含碳量,计算锰碳比。