ICP-AES Determination of Trace Amounts of Elements in High-Purity Titanium
摘 要
应用电感耦合等离子体原子发射光谱(ICP-AES)法测定高纯钛中14项杂质元素,并对其最佳测定条件进行了试验.采用两点法制备工作曲线.试样溶于盐酸和硫酸混合酸中,滴加过氧化氢使钛氧化至4价.将试液蒸干使钛以二氧化钛状态沉淀析出,加入稀硝酸后将其过滤除去.在滤液中进行各杂质组分的ICP-AES测定,所测14项元素的检出限(3S)在5×10-4~1.5×10-2mg·L-1范围内,回收率在97.5%~113.4%之间.
Abstract
Optimum conditions of determination of 14 trace-elements in high-purity titanium by ICP-AES were studied.Working curves with two standard points method were used in the determination.Titanium sample was dissolved in HCl-H2SO4 mixed acid and Ti(Ⅲ) in the solution was oxidized to Ti(Ⅳ) by H2O2.The sample solution was evaporated to dryness to precipitate the matrix as TiO2,which was separated by filtration from a dil.nitric acid solution (1+2) and trace amounts of the elements were determined by ICP-AES in the filtrate.Detection limits (3S) of the 14 elements were found in the range of 5×10-4-1.5×10-2mg·L-1,and recoveries were in the range of 97.5%-113.4%.
中图分类号 O657.31
所属栏目 工作简报
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收稿日期 2005/8/12
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备注邹玲玲(1956-),女,浙江温州人,高级实验师,主要从事分析化学工作.
引用该论文: ZHOU Ling-ling,ZHANG Xue-jun,GUO Yu-sheng. ICP-AES Determination of Trace Amounts of Elements in High-Purity Titanium[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2007, 43(3): 213~214
邹玲玲,张学俊,郭玉生. 电感耦合等离子体原子发射光谱法测定高纯钛中痕量元素[J]. 理化检验-化学分册, 2007, 43(3): 213~214
被引情况:
【1】刘爱坤,胡建春,王玲,乌静, "电感耦合等离子体原子发射光谱法测定氧化铁粉中微量组分",理化检验-化学分册 47, 1015-1017(2011)
【2】李佗,杨军红, "电感耦合等离子体原子发射光谱法在稀有难熔金属及其合金分析中的应用",理化检验-化学分册 49, 500-504(2013)
【3】杨军红,李佗,石新层, "钛基材料中元素分析方法研究进展",理化检验-化学分册 50, 512-517(2014)
【4】秦立俊,王恒,王雪婷,王通胜,姜郁,夏新媛,郑光煜,窦维伟, "微波消解样品-电感耦合等离子体原子发射光谱法测定镍精矿中10种金属元素",理化检验-化学分册 48, 295-298(2012)
【5】成勇, "电感耦合等离子体原子发射光谱法测定四氯化钛液体中杂质元素",理化检验-化学分册 47, 18-20(2011)
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