论文部分内容阅读
一.引言随着稀土球墨铸铁的广泛应用,有关它的分析方法也在不断改进和发展,不少单位对球铁中稀土和镁的分析进行了很多的试验与研究,综合这些资料,重要的工作是干扰元素的分离和显色剂的选择,由于球铁中稀土和镁的含量较低,采用比包分析是合适的。当前,能否不经分离而采用直接比色法测定球铁中稀土和镁是人们所努力探讨的。
I. Introduction With the extensive application of rare earth ductile iron, its analysis methods are also constantly improving and development, many units of ductile iron and magnesium in the analysis of a lot of experiments and studies, a combination of these data, it is important Work is to interfere with the separation of elements and the choice of developer. Due to the lower content of rare earth and magnesium in the ductile iron, it is appropriate to use a specific package analysis. At present, whether the direct colorimetric determination of rare earths and magnesium in ductile iron can be explored without separation can be explored.