ICP-AES扩展通道法测定稀土镁合金中稀土总量、镁、钙、锰、铁

本文介绍了用ICP－AES测定稀土镁合金中稀土总量、钙、镁、锰、铁的方法，其中，稀土总量以铈的量进行换算，而铈 的测量通道通过扩展手段来设置。文中对样品的处理、测定的条件进行了较详细的研究，并对测量的精密度、准确度进行了考查。实验证明，该方法简便、结构可靠。

Determination of Total Quantity of Rare Earths,Ca,Mg,Mn and Fe in Rare-earths-magnesium by ICP-AES with Offset Profile Add Lines

This article introduced a method for the determination of total quantity of rare earths,Ca,Mg,Mn and Fe in rare-earths-magnesium with ICP-AES.The total quantity of rare-earths was calculated by the quantum of cerium,the measurement channel of cerium was fixed by the method of Offset Profile Add Lines,by changing the entrance slit angle,based on the fixed channels of the ICP-AES.The sample was melted with HNO 3,HF,HClO 4 and HCl,the difficulty of melting sample was properly settled.The method of internal standard was used in the determination,cobalt elected for the internal standard,and the same concentration cobalt liquor was added in the sample liquor.This article made the measurment parameters test,for example the quantum of pump,the height of observation,etc,and examined the liner range,accuracy,background equal concentration,detection limits and precision.The results showed that the method was simpler than chemical analytic method in oprating,and could simultaneously determined many kinds of elements.It was compared with chemical method,the results were satisfactory.