惰气熔融-红外吸收法测定钛钼合金中氧  

Determination of oxygen in titanium-molybdenum alloy by inert gas fusion-infrared absorption method

作　　者：王宽[1] 梁清华[1] 周恺[1] 王辉[1] 郑伟[1] 

机构地区：[1]西北有色金属研究院,陕西西安710016

出　　处：《冶金分析》2015年第3期61-63,共3页Metallurgical Analysis

摘　　要：对惰气熔融-红外吸收法测定钛钼合金中氧含量的分析方法进行了研究。确定了最佳分析条件为：称取0.06g样品于0.85g镍篮中,投入石墨坩埚中进行测定,控制分析功率为5.0kW,分析时间为40s。使用钛标样501-657建立校准曲线,得到回归方程为y=1.336 88x。利用3倍空白标准偏差计算得到氧的检出限为0.000 22%。采用方法测定了2个钛钼合金样品中氧的含量,测定结果的相对标准偏差（RSD,n=11）分别为2.0%和3.3%。方法加标回收率在95%~103%之间。The content of oxygen in titanium-molybdenum alloy was determined by inert gas fusion-infrared absorption method. The optimal analytical conditions were selected： 0.06 g of sample was weighed in a 0. 85 g nickel basket which was put in a graphite crucible for determination; the analytical power was controlled at 5.0 kW and analytical time was 40 s. Calibration curve was drawn by titanium certified reference material 501-657 with regression equation ofy = 1. 336 88x. The detection limit of oxygen was 0. 000 22% by three times of blank standard deviation. The content of oxygen in two titanium-molybdenum alloy samples was determined by the proposed method. The relative standard deviation （RSD, n = 11） was 2.0G and 3.3%. The standard addition recoveries for this method were between 95% and 103%.

关 键 词：惰气熔融 红外吸收法 钛钼合金 氧 

分 类 号：TG115[金属学及工艺—物理冶金] TG146.23[金属学及工艺—金属学]