离心浇铸制样-X射线荧光光谱法测定钨铁中钨
宋鹏心,张健,杨志强,张东生
首钢技术研究院,北京 100043
Determination of tungsten in ferrotungsten by X-ray fluorescence spectrometry with centrifugal casting sample preparation
SONG Peng-xin, ZHANG Jian, YANG Zhi-qiang, ZHANG Dong-sheng
SHOUGANG Research Institute of Technology, Beijing 100043,China
摘要 以纯铁为熔剂,采用离心浇铸法制样,建立钨铁中钨元素的X射线荧光光谱快速分析方法。试验证明了熔融后钨元素在样品中的分布均匀性良好,熔融多次样品间不存在显著差异。同时,对样品中可能存在的谱线重叠干扰因素进行了试验测量和排除。试验采用国家标准样品及人工配置校准样品制作校准曲线,线性范围为50.00%~85.00%。用生产样品的重量法测定值与方法的分析值进行比对,差值在±0.20%以内,方法可以满足常规检测工作中对钨铁中钨含量的快速测定要求。
关键词 :
高频感应重熔 ,
离心浇铸 ,
X射线荧光光谱 ,
钨铁 ,
钨
Abstract : A rapid analysis method of X-ray fluorescence spectrometry for determining tungsten in ferrotungsten was established with pure iron as flux and centrifugal casting method for sample preparation. The result indicated tungsten had excellent distribution uniformity in sample after melting. No significant difference existed among samples after melting. Meanwhile, test measurement and exclusion were conducted on the potential spectral overlap interference factors in the sample. National standard sample and manually prepared calibration samples were used to draw calibration curve, with linearity scope of 50.00%-85.00%. A comparison was conducted between the testing result of gravimetric method and the proposed method,and the difference was within ±0.20%. The method can meet the the routine testing requirements for fast determination of tungsten in ferrotungsten.
Key words :
high frequency-remelting
centrifugal casting
X-ray fluorescence spectrometry
ferrotungsten
tungsten
收稿日期: 2013-04-22
作者简介 : 宋鹏心(1985-),男,工程师,主要从事冶金原材料化学成分分析工作;E-mail:spx600@126.com
引用本文:
宋鹏心,张健,杨志强,张东生. 离心浇铸制样-X射线荧光光谱法测定钨铁中钨[J]. 冶金分析, 2013, 33(4): 48-51.
SONG Peng-xin, ZHANG Jian, YANG Zhi-qiang, ZHANG Dong-sheng. Determination of tungsten in ferrotungsten by X-ray fluorescence spectrometry with centrifugal casting sample preparation. , 2013, 33(4): 48-51.
链接本文:
http://47.93.29.245/Jweb_yjfx/CN/ 或 http://47.93.29.245/Jweb_yjfx/CN/Y2013/V33/I4/48
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