火焰原子吸收光谱法测定钛及钛合金中铁  

Determination of Iron Content in Titanium and Titanium Alloys by Flame Atom Absorption Spectroscopy

作　　者：杨平平[1] 孙宝莲[1] 周恺[1] 李波[1] 

机构地区：[1]西北有色金属研究院,陕西西安710016

出　　处：《稀有金属材料与工程》2011年第S2期121-123,共3页Rare Metal Materials and Engineering

基　　金：西北有色金属研究院生产课题(2009JK-02)

摘　　要：采用盐酸-氢氟酸-硝酸混酸溶解样品,通过溶样酸的选择、共存离子对铁的干扰、仪器工作条件选择及精密度、准确度试验等一系列条件试验,建立钛及钛合金中铁的原子吸收光谱(FAAS)测定方法,并与其他方法(1,10-二氮杂菲分光光度法、ICP-AES法)进行了数据对比试验。实验结果表明:该方法分析速度快,具有较高的准确度与精密度,通过对TC6(0.443%)与TC10(0.706%)标样中的铁分别进行多次测定,RSD为0.1%,加料回收率为97%～101%。The titanium and titanium alloys containing iron element was decomposed by HCl-HNO3 -HF mixture solution. The experimental condition was chosen through studying the effect of acide degree, interfered ions, the condition of instruments, accuracy and precision on the determination of iron, and the established method was compared with ICP-AES and 1,10 phenanthroline. The experimental results indicate that, the proposed method is precision and accurate. After TC6 and TC10 was measured for several times, the relative standard deviation is 0.1% (n=6), the recovery of iron is 97%-101%, and the iron in titanium and titanium alloy can be determinated in the range from 2.00 to 35.00 μg/mL.

关 键 词：火焰原子吸收光谱法 钛及钛合金 铁 

分 类 号：O657.31[理学—分析化学] TG115.33[理学—化学]