Prodigy DC Arc直流电弧光谱法测定纯钽及钽制品中铁元素
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摘要
试验探讨了DC Arc直流电弧光谱仪测定纯钽及钽制品中Fe元素的条件,并建立了测定方法。通过试验确定了Fe元素的分析线波长、积分时间及背景点位置。按照实验方法测得样品中Fe元素的加标回收率在92.73%—107.27%之间,含量测定的相对标准偏差(RSD,n=10)为4.8%,Fe元素的检出限为1.41μg/g。本法对标准样品的测定结果与GE-340光栅光谱法、DV-5直流电弧光谱法的测定结果基本一致。
Determination conditions for Fe in pure tantalum and tantalum products were discussed and the determination method established. The wavelengths,integral time and point location in the background of Fe were determined by tests. According to the experiment,the standard addition recovery is between 92. 73% and 107. 27%,the relative standard deviation( RSD,n = 10)of Fe content is 4. 8%,and the Fe detection limit is 1. 41 μg / g. The determination results presented by this method are basically in accordance with those by GE-340 grating spectrum method and DV-5 dc arc spectrum method.
Determination conditions for Fe in pure tantalum and tantalum products were discussed and the determination method established. The wavelengths,integral time and point location in the background of Fe were determined by tests. According to the experiment,the standard addition recovery is between 92. 73% and 107. 27%,the relative standard deviation( RSD,n = 10)of Fe content is 4. 8%,and the Fe detection limit is 1. 41 μg / g. The determination results presented by this method are basically in accordance with those by GE-340 grating spectrum method and DV-5 dc arc spectrum method.
引文
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[2]孟凡成,欧阳南.钽铌新材料与高科技发展[J].江西冶金,2003,23(6):29—32.
[3]陈明伦,张永龙,刘春玉,等.DV-5直读光谱仪在铌中杂质光谱分析中的应用[J].光谱实验室,2007,24(2):194—196.
[4]任凤莲,李彤,许永林.钨钴合金粉中21种杂质元素的直流电弧发射光谱分析[J].冶金分析,2006,26(5):58—61.
[5]李秀华,王文品,何玉田,等.电感耦合等离子体原子发射光谱法测定铌铁中硅[J].冶金分析,2013,33(3):73—76.
[6]田孔泉,郝红梅,张卫杰,等.ICP-MS测定超高纯钽铌及其化合物中痕量杂质元素[J].光谱实验室,2004,21(3):551—555.
[7]邢延,赵田冬,叶关荣.光电积分式测色仪器定标的软件与硬件技术[J].光学仪器,1996(5):6—11.
[8]胡净宇,王海舟.ICP-MS在冶金分析中的应用进展[J].纳克分析通讯,2003,1(4):2—7.
[9]江祖成,冯永来.现代原子发射光谱分析[M].北京:科学出版社,1999.
[10]刘湘生.电感耦合等离子体质谱法测定稀土元素的状况与展望[J].分析化学,1995,23(10):1218—1224.