摘要
介绍了一种测定氮化金属锰中磷含量的测试方法。测定试料用硝酸分解,加高氯酸蒸发至冒白烟,将磷氧化成正磷酸,以亚硫酸氢钠将铁等还原,加入钼酸铵和硫酸肼使之反应,生成磷钼蓝,于分光光度计波长800 nm处测量其吸光度。该方法操作简便、快捷,值得推广。
In this paper, a method for the determination of phosphorus in metal manganese nitride is introduced. To decompose the sample to be determined with nitric acid, then add perchloric acid to evaporate until it generates white smoke. The phosphorus is oxidized to positive phosphoric acid, reduceing Fe and other elements with sodium bisulfite.Then, adding ammonium molybdate and hydrazine sulfate to react and generate molybdenum blue. Measuring the absorbance at the wavelength of 800 nm in the spectrophotometer. The method is simple, rapid, and it is worth popularizing.
出处
《铁合金》
2016年第2期38-40,共3页
Ferro-alloys
关键词
氮化金属锰
磷
分光光度法
含量
metal manganese nitride
phosphorus
spectrophotometric method
content
