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我所曾介绍过一种纯铝中杂质元素的快速测定方法,但此方法只适用于分析纯度不超过99.9%的材料。为了解决高纯铝(99.99%)的杂质分析问题,我们进行了研究并提出一套操作比较简便,适合于在工厂试验室中使用的快速分析法。硅的测定硅钼兰比色法测定硅是一种常用的方法,为了使此法能达到测定微量硅的目的,我们采用萃取法将硅富集,然后还原显色。试剂:1.氢氧化钠溶液:40%,用一级试剂配制后存放
I have introduced a rapid determination of impurity elements in pure aluminum, but this method is only applicable to the analysis of materials with a purity of not more than 99.9%. In order to solve the problem of impurity analysis of high purity aluminum (99.99%), we conducted a study and proposed a rapid analytical method that is simple to operate and suitable for use in a factory laboratory. Determination of silicon Silicon molybdenum blue colorimetric determination of silicon is a commonly used method, in order to make this method can achieve the purpose of determination of trace silicon, we use the extraction method of silicon enrichment, and then restore the color. Reagents: 1. Sodium hydroxide solution: 40%, formulated with a reagent storage