分光光度法对锰矿中铁含量分析的研究

Spectrophotometric Analysis of Iron Content in Manganese Ore

本文采用分光光度法对铁含量大于3%的锰矿进行分析,该法依据紫外区吸收光谱的原理,在510 nm的波长下直接测定锰矿中铁含量。首先测定出铁标准曲线回归方程和线性关系,并利用锰矿标准样品测试出方法的精密度、回收率和相对偏差,再通过铁回归方程和线性关系结合该法锰矿回收率最终检测出锰矿中含量大于3%的全铁含量。结果显示:该方法可以直接测出锰矿中铁含量,同时该方法操作简单、方便、精确度高,为后续的检测锰矿中铁含量具有重要意义。

In this paper, the content of total iron which is more than 3% in manganese ore is analyzed by spectrophotometry. According to the principle of ultraviolet absorption spectrum, the content of iron in manganese ore is determined directly at 510 nm wavelength. Firstly, the regression equation and linear relation of iron standard curve are obtained, and using standard sample of manganese ore to calculate the precision, recovery and relative deviation, through the regression equation and linear relation of iron and the recovery rate of manganese ore, the manganese ore whose iron content is more than 3% is finally determined. The results show that this method can directly determine iron content in manganese ore. At the same time, this method is simple, convenient and accurate. It is of great significance for subsequent detection of iron content in manganese ore.