电感耦合等离子体质谱法测定镧镁合金中稀土杂质

doi:10.13228/j.issn.1000-7571.2014.06.007

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摘要采用硝酸溶解样品, 建立了电感耦合等离子体质谱法(ICP-MS)测定镧镁合金中稀土杂质的含量。选择合适的测定同位素以及选用干扰元素校正方程克服了质谱干扰。对仪器工作条件进行了优化, 确定功率为1 100 W, 载气流量为0.80 L/min。讨论了测定条件对结果的影响, 确定测定介质为1%硝酸, 内标元素为Cs, 基体浓度小于0.3 mg/mL。方法测定下限为0.006 9～0.046 ng/mL。采用方法对实际样品进行测定, 回收率为98%～102%。与电感耦合等离子体发射光谱法(ICP-AES)进行方法对照, 两种方法测定结果基本一致, 相对标准偏差(RSD, n=6)在1.7%~4.5%之间。

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	张立锋
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关键词 ：电感耦合等离子体质谱法(ICP-MS), 镧镁合金, 稀土杂质

Abstract：After the sample was dissolved by nitric acid, a method for determination of rare earth impurities in lanthanum-magnesium alloy was established by inductively coupled plasma mass spectrometry. Appropriate isotopes and interfering elements correction equation were chosen to overcome spectral interferences. The instrument working conditions were optimized with power of 1 100 W and carrier gas flow rate of 0.80 L/min. A discussion of the impact of testing conditions on the result was conducted. The testing conditions were confirmed as follows: 1% nitric acid as medium, Cs as internal standard element and substrate concentration less than 0.3 mg/mL. The low limit of determination of the method was 0.006 9-0.046 ng/mL. This method was employed to determine actual sample with recoveries of 98%-102%. Compared with inductively coupled plasma atomic emission spectrometry (ICP-AES), the results of both methods were basically consistent with each other, and relative standard deviation (RSD, n=6) were in the range of 1.7%-4.5%.

Key words： inductively coupled plasma mass spectrometry (ICP-MS) lanthanum-magnesium alloy rare earth impurity

收稿日期: 2013-08-09

ZTFLH:

O657.63

作者简介: 张立锋(1981-)男, 工程师, 本科, 从事冶金分析研究;

引用本文:

张立锋, 张秀艳, 张翼明, 李立刚. 电感耦合等离子体质谱法测定镧镁合金中稀土杂质[J]. 冶金分析, 2014, 34(6): 33-37. ZHANG Li-feng, ZHANG Xiu-yan, ZHANG Yi-ming, LI Li-gang. Determination of rare earth impurities in lanthanum-magnesium alloy by inductively coupled plasma mass spectrometry. , 2014, 34(6): 33-37.

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http://47.93.29.245/Jweb_yjfx/CN/10.13228/j.issn.1000-7571.2014.06.007 或 http://47.93.29.245/Jweb_yjfx/CN/Y2014/V34/I6/33

[1]	沈远香, 张秀蓉, 罗明文. 高性能稀土镁合金的研发现状及应用[J].四川兵工学报(Sichuan Ordnance Journal), 2008, 29(5):l14-116.
[2]	周京, 冯芝勇, 张金玲, 等. La含量对AZ91镁合金耐蚀性能的影响[J].太原理工大学学报(Journal of Taiyuan University of Technology), 2013, 44(5):573-578.
[3]	王军, 朱秀荣, 徐永东, 等.稀土Ce和Y对AZ80镁合金组织和力学性能的影响[J]. 中国有色金属学报(The Chinese Journal of Nonferrous Metals), 2014, 24(1):25-35.
[4]	杨宏伟, 夏鹏举, 王同乐, 等.钕含量对Mg-8Al-0.5Ca 合金组织和性能的影响[J].铸造技术(Foundry Technology), 2014, 35 (2):263-266.
[5]	顾继红, 于媛君, 亢德华, 等. 电感耦合等离子体原子发射光谱法镁合金板中镧铈[J]. 冶金分析(Metallurgical Analysis), 2011, 31(7):51-54.
[6]	姚强, 王燕, 朱宇宏, 等. X射线荧光光谱法测定稀土镁合金中镧、铈和镨含量[J]. 理化检验:化学分册(Physical Testing and Chemical Analysis Part B: Chemical Analysis), 2013, 49(12):1515-1516.
[7]	刘湘生, 蔡绍勤, 柳凤粉, 等. 用电感耦合等离子体质谱法测定高纯稀土中稀土杂质时的基体影响[J]. 分析化学研究简报(Chinese Journal of Analytical Chemistry), 1997, 25(6):652-655.
[8]	白金峰, 张勤, 孙晓玲, 等. 高分辨电感耦合等离子体质谱法测定地球化学样品中钪钇和稀土元素[J].岩矿测试(Rock and Mineral Analysis), 2011, 30(1):17-22.
[9]	张华, 王英锋, 施燕支, 等.电感耦合等离子体质谱法测定镁合金中多种元素[J]. 分析试验室(Chinese Journal of Analysis Laboratory), 2007, 26(6):47-50.
[10]	于媛君, 亢德华, 王铁, 等. 电感耦合等离子体质谱法测定钢铁及合金中镧、铈、镨、钕、钐[J]. 冶金分析(Metallurgical Analysis), 2011, 31 (9): 18-21.
[11]	亢德华, 于媛君, 王铁, 等. 电感耦合等离子体质谱法测定铸铁中镁、锡、镧、铈、锑和铅[J]. 冶金分析(Metallurgical Analysis), 2011, 31 (6): 54-57.