摘要
本文提出在样品上覆盖Co_(3)O_(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。
In this paper,a micromethod for the determination of carbon and hydrogen in organo-metallic compounds has been reported,3-5 mg of sample was covered with 10 mg of freshly prepared Co_(3)O_(4) in platinum boat and burned over a catalyst of products of thermal decomposition of silver permanganate under a current of oxygen(25ml/min.)at 500-550°C.The combustion took about 10 minutes.The data of determination of a series of standard organo-metallic compounds showed that the absolute deviation of this method was within±0.3%.As a result of low combustion temperature,the duration of the silica combustion tubes was much increased.The properties of MnO_(2) reagents for absorbing nitrogen oxides prepared by various methods were compared and the procedure for preparing the most effective reagent was described.
作者
魏涛
黄殿群
陈耀祖
Wei Tao;Huang Dianqun;Chen Yaozu(Chen Yaotsu)(Institute of Qrganic Chemistry,Lanzhou University,Lanzhou)
出处
《高等学校化学学报》
SCIE
EI
CAS
1981年第3期321-326,共6页
Chemical Journal of Chinese Universities
