摘要
通过对铁矿石尾矿中磁性铁的选磁,烘干称重后用硝酸盐酸分解样品。在工作曲线中加入基体,采用基体匹配办法消除铁的干扰。按选定的实验条件,可多种元素同时分析的优点,快速分析磁性铁中的杂质元素。线性相关系数r=0.9999,硫酸根的检出限为0.004%,其它在0.0002%～0.001%,回收率均在98%～105%之间,完全满足实际分析要求。
Through magnetically selecting from magnetic iron tailings, magnetic iron samples are stoved, weighted and further decomposed using nitric acid and hydrochloric acid. According to specific experimental conditions, a fast analysis is performed to filter impurity elements from these magnetic iron samples by adding the base into the working curve and reducing the disturbances of iron.Linear correlation coefficient r = 0.9999, detection limit of sulfate is 0.004%, others at 0.0002% -0.001%, recovery percentages are between 98% and 105%, which fully meet the requirements for analysis in practice.
出处
《现代科学仪器》
2010年第5期103-104,共2页
Modern Scientific Instruments
