摘要
介绍了采用ICP—AES法同时测定钛合金中Ta、Nb、W元素含量的方法。首先确定了仪器部分工作参数的最佳值，其中激发功率1300W、雾化器流量0．7L·min^-1、积分次数2次。然后通过对基体、合金元素以及测定元素光谱间的干扰分析研究，确定了Ta、Nb、W元素最佳分析谱线的位置，依次为240．063、269．706、207．912nm。此外，采用内标法对Nh质量分数大于3％的样品的测试结果进行了校正。试样加标回收试验及精密度试验表明采用上述方法可使回收率在99％～102％之间，相对标准偏差小于2．3％，能够满足日常生产的检测要求。
The method of determination Ta, Nb, W elements in titanium alloy by ICP-AES was introduced. The best apparatus working parameters were selected firstly, exciting power was 1 300 W, atomizer flow was 0.7 L·min^-1 and the times for integral was twice. The optimum analytical lines of Ta, Nb, W were found out by the analysis, and they were 240. 063, 269. 706, 207. 912 nm, respectively. Besides, The internal correction method was used to check the testing results of the samples which the content of Nb exceed 3%. The recovery and precision tests were also performed, the determination recovery could reach 99% - 102% and relative standard deviation （RSD） was less than 2. 3 % , so this method could meet the requirements of daily testing.
出处
《钛工业进展》
CAS
2013年第6期38-41,共4页
Titanium Industry Progress
关键词
ICP—AES法
钛合金
钽
铌
钨
ICP-AES
titanium alloy
tantalum
niobium
wolfram
