石墨炉原子吸收光谱法测定高温合金中痕量铟

Determination of Trace In in Superalloy by GFAAS

本试验研究了在硫酸介质中用 4-甲基戊酮 - [2 ]萃取待测痕量元素铟的碘化物 ,使之与基体及主量元素分离的最佳试验条件 ,并对回收率及方法精密度进行了试验。所制定的方法适用于高温合金中铟的分析 ,试验结果准确可靠。

An optimum conditions for extracting iodide of trace In from matrix and main composition elements with 4 methyl pentanone [2] in sulfuric acid medium is described in this paper.The rate of recovery and precision have been studied.The method is applied to the determination of trace In in superalloy.The result is accurate and reliable.