Determination of lanthanum, cerium, praseodymium and neodymium in low alloy steel by inductively coupled plasma mass spectrometry
ZHANG Li-feng1, 2, 3, ZHOU Kai-hong1, 2, 3
1. National Engineering Research Centre of Rare Earth Metallurgy and Funcional Materials, Baotou 014030, China; 2. State Key Laboratory of Baiyunobo Rare Earth Resource Researches and Comprehensive Utilization, Baotou 014030, China; 3. Baotou Research Institute of Rare Earths, Baotou 014030, China
Abstract：The sample was dissolved with hydrochloric acid-nitric acid-hydrofluoric acid-perchloric acid. The determination method of lanthanum, cerium, praseodymium and neodymium contents in low alloy steel by inductively coupled plasma mass spectrometry (ICP-MS) was established. According to the principle of high abundance and no interference, 139La (99.911), 140Ce (88.48), 141Pr (100) and 146Nd (17.62) were selected as the measuring isotopes. The working conditions of instrument were optimized: the power was 1200W and the carrier gas flow rate was 0.84L/min. The effect of determination conditions on results was discussed, and 2% nitric acid was selected as the determination medium. Moreover, the influence of matrix mass concentration on signal intensity of testing elements was investigated. It was found that the suitable mass concentration of matrix should be lower than 0.5g/L. The correction tests for instrumental signal drift and matrix effect were conducted using Rh, In, Cs and Tl as internal standard elements, and 10ng/mL Cs was finally selected as the internal standard. The matrix concentration should be less than 0.5mg/mL. The detection limits of method were between 0.00072 and 0.0017ng/mL. The lower determination limit was in range of 0.0024-0.0057ng/mL. The actual low alloy steel sample was determined according to the experimental method, and the found results were basically consistent with those obtained by inductively coupled plasma atomic emission spectrometry (ICP-AES). The relative standard deviation (RSD, n=6) were between 1.2% and 4.0%.
周惦武,彭平,徐少华,等.稀土元素在钢中的应用与研究[J].铸造设备研究,2004(3):35-38.ZHOU Dian-wu,PENG Ping,XU Shao-hua,et al.Research and application of rare earth in steel[J].Research Studies On Foundry Equipment,2004(3):35-38.
[2]
游涛,朱兴元,石勤,等.稀土对冷轧深冲薄板成形性能的影响[J].河南冶金,2006,14(b09):97-99.YOU Tao,ZHU Xing-yuan,SHI Qin,et al.The effect of rare earth element on formability in cold-rolling deep drawing steel[J].Henan Metallurgy,2006,14(b09):97-99.
[3]
杨吉春,曹晓恩,杨昌桥,等.稀土Ce对X80钢低温冲击韧性的影响[J].稀土,2013,34(2):1-5.YANG Ji-chun,CAO Xiao-en,YANG Chang-qiao,et al.Effect of Ce on low temperature impact toughness of X80 steel[J].Chinese Rare Earths,2013,34(2):1-5.
[4]
郑留伟,王红霞,阴耀鹏,等.ECAP制备Mg-15Al-xNd合金的显微组织及高温力学性能[J].材料热处理学报,2016,37(6):61-66.ZHENG Liu-wei,WANG Hong-xia,YIN Yao-peng,et al.Microstructure and elevated temperature mechanical properties of ECAPed Mg-15Al-xNd alloys[J].Transactions of Metal Heat Treatment, 2016,37(6):61-66.
[5]
陈娟,覃波,董丽君,等.含稀土Nd、Y的ZK60合金熔化焊焊接性研究[J].热加工工艺,2016,45(7):33-36.CHEN Juan,QIN Bo,DONG Li-jun,et al.Study on fusion weldability of ZK60 alloys containing Nd and Y[J].Hot Working Technology,2016,45(7):33-36.
[6]
杨吉春,杨全海,丁海峰,等. 稀土钇对管线钢耐蚀性和物理化学行为的影响[J].特殊钢,2016,37(2):62-65.YANG Ji-chun,YANG Quan-hai,DING Hai-feng,et al. Effect of Rare Earth Yttrium on Corrosion Resistance and Physicochemical Behavior of Pipeline Steel[J]. Special Steel, 2016,37(2):62-65.
[7]
褚连青,李继爽,王鑫,等.钢铁及合金中稀土总量快速测定方法研究[J].现代仪器,2012,18(1):22-23.CHU Lian-qing,LI Ji-shuang,WANG Xin,et al.Rapid determination of total content of rare earth in steel and alloy[J].Modern Instruments,2012,18(1):22-23.
[8]
龙敏,余登敏,赵跃萍.钢中稀土铈的光度法测定[J].冶金标准化与质量,2007,45(6):17-18.LONG Min,YU Deng-min,ZHAO Yue-ping.Determination of rare earth cerium content in steel by spectrophotometric method[J].Metallurgical Standardization & Quality,2007,45(6):17-18.
[9]
刘国根,黄宗献,毛善成,等.钢中稀土的极谱测定[J].稀土,1995,16(6):27-30.LIU Guo-gen,HUANG Zong-xian,MAO Shan-cheng,et al.Polarographic determination of rare earths in steel[J].Chinese Rare Earths,1995,16(6):27-30.
[10]
丁洪伟.应用PDA-5500Ⅱ直读光谱仪开展中低合金钢中稀土元素铈的光谱分析[J].黑龙江冶金,2013,33(6):5-6.DING Hong-wei.Spectral analysis of rare earth elements in low alloy steel with cerium by PDA-5500Ⅱ direct reading spectrometer[J].Heilongjiang Metallorgy,2013,33(6):5-6.
[11]
尹志辉,张亚杰.萃取分离电感耦合等离子体原子发射光谱法测定钢中的微量稀土元素[J].分析化学,1995,23(11):1292-1296.YIN Zhi-hui,ZHANG Ya-jie.Determination of trace rare earth elements in steel extraction-inductively coupled plasma-atomic emission spectrometry[J].Chinese Journal of Analytical Chemistry,1995,23(11):1292-1296.
[12]
董利珍,祁世明,崔军.ICP-AES法测定普碳钢及低合金钢中铝等23种元素[J].冶金分析,2001,21(5):27-30.DONG Li-zhen,QI Shi-ming,CUI Jun.Determination of aluminium and other 22 elements in plain carborn steel and low-alloy steel by ICP-AES[J].Metallurgical Analysis,2001,21(5):27-30.
[13]
张立锋,阴海静,周凯红,等. 电感耦合等离子体质谱法测定空气中氧化镨[J].冶金分析,2014,34(2):11-14.ZHANG Li-feng,YIN Hai-jing,ZHOU Kai-hong,et al.Determination of praseodymium oxide in air by inductively coupled plasma mass spectrometry[J].Metallurgical Analysis,2014,34(2):11-14.
[14]
吴葆存,于亚辉,闫红岭,等.碱熔-电感耦合等离子体质谱法测定钨矿石和钼矿石中稀土元素[J].冶金分析,2016,36(7):39-45.WU Bao-cun,YU Ya-hui,YAN Hong-ling,et al.Determination of rare earth elements in tungsten ore and molybdenum ore by inductively coupled plasma mass spectrometry with alkali fusion[J].Metallurgical Analysis,2016,36(7):39-45.
[15]
张立锋,张秀艳,张翼明,等.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,et al.Determination of rare earth impurities in lanthanum-magnesium alloy by inductively coupled plasma mass spectrometry[J].Metallurgical Analysis,2014,34(6):33-37.
[16]
江永红.ICP-MS法同时测定奶粉中16种稀土元素[J].食品研究与开发,2015,36(13): 103-106.JIANG Yong-hong.Determination of 16 rare earth elements in milk powder by inductively coupled plasma mass spectrometry[J].Food Research and Development,2015,36(13):103-106.
