高速钢轧辊中钨、锰、钼、钴、铜、钒、铬联合快速测定

Rapid United Detection of W,Mn,Mo,Co,Cu,V and Cr in High-speed Steel Roll

用磷酸、高氯酸统一溶解处理方法制备试液,用同一母液分别以光度法和滴定法测定W、Mn、Mo、Co、Cu、V、Cr元素的含量。通过控制测定的酸度,各元素线性良好,分析误差完全在国标误差范围内。该方法缩短了分析周期,精密度、准确度高,钨、锰、钼、钴、铜、钒、铬的RSD分别≤1.42%、≤1.26%、≤2.12%、≤6.72%、≤0.53%、≤1.53%、≤5.73%,能够满足快速测定的要求。

The test solution was prepared by phosphoric acid and perchloric acid dissolution method, then to the same solution, the photometric method and titration method were respectively used to determine the contents of W, Mn, Mo, Co, Cu, V and Cr elements. By controlling the acidity during determination, the linear of each element was good and the analytical error was entirely controlled within the scope of the national standard error. The method has shortened the cycle, high precision and accuracy of the analysis. RSD of W, Mn, Mo, Co, Cu, V and Cr were separately less than or equal to 1.42% , 1.26% , 2.12% , 6.72% , 0.53% , i. 53% , 5.73% , being able to meet the requirements of rapid determination.