本文提出在样品上覆盖Co_3O_4,用高锰酸银热解产物作催化剂,在550°C燃烧进行燃烧分析的微量测定有机金属化合物中碳氢的方法。燃烧操作时间12分钟,分析结果误差介于±0.3％,由于燃烧温度低,大大延长了石英管寿命。此外,还比较了用各种方法所制备的吸收氮氧化物的MnO_2的性能,并选出最佳的制备条件。 This paper proposes a method for the determination of hydrocarbon in organometallic compounds by coating the sample with Co_3O_4, using the permanganate pyrolytic product as catalyst, and burning at 550 ° C for combustion analysis. Combustion operation time 12 minutes, the analysis of the error is ± 0.3%, due to low combustion temperature, greatly extending the life of the quartz tube. In addition, the performance of MnO 2 absorbing nitrogen oxides prepared by various methods was also compared and the best preparation conditions were selected.