摘要
研究了用TC500氧氮分析仪测定碳化铬中氮的分析条件。结果表明：采用称样量为0.10 g,镍囊包裹,分析功率5 000 W,比较器水平为3的条件下测定,可以得到满意的分析结果。对碳化铬进行分析,得到的相对标准偏差为1.42%,加标回收率在97.0%-101.2%之间。
The conditions for determination of nitrogen content in chromium carbide by TC500 nitrogen oxygen analyzer were studied. The results indicate that a satisfactory result can be obtained when the determination is carried out under following conditions： the sample with nickel capsule package 0.10 g, the analysis power 5000W ,the comparator level 3.The relative standard deviation is 1.42%, and the addition standard recovery is 97.0% ~ 101.2%.
出处
《当代化工》
CAS
2015年第5期1191-1192,共2页
Contemporary Chemical Industry
关键词
惰气熔融
热导法
碳化铬
氮
Inert gas fusion
Thermal conductivity method
Chromium carbide
Nitrogen
