电感耦合等离子体发射光谱法测定γ-钛铝铌合金中铝、铌、钨、硼  

Determination of aluminum,niobium,tungsten and boron inγ-titanium-aluminum-niobium alloy by inductively coupled plasma atomic emission spectrometry

作　　者：曾磊 张彬彬 杜米芳[1] 李斌[1] 刘攀[1,2] 张欣耀 ZENG Lei;ZHANG Binbin;DU Mifang;LI Bin;LIU Pan;ZHANG Xinyao(Luoyang Ship Material Research Institute,Henan Key Laboratory of Technology and Application of Structural Materials for Ship and Marine Equipment,Luoyang 471023,China;Xiamen Sunrui Materials Research Institute Co.,Ltd.,Xiamen 361100,China)

机构地区：[1]中国船舶重工集团公司第七二五研究所(洛阳船舶材料研究所),河南省船舶及海工装备结构材料技术与应用重点实验室,河南洛阳471023 [2]厦门双瑞材料研究院有限公司,福建厦门361100

出　　处：《化学分析计量》2023年第8期12-15,24,共5页Chemical Analysis And Meterage

基　　金：工信部国家新材料生产应用示范平台(TC180A6MR/2,TC190H3ZV/2);七二五所科技创新项目(LW220606)。

摘　　要：建立电感耦合等离子体原子发射光谱法测定γ-钛铝铌合金中铝、铌、钨、硼的分析方法。采用10 mL盐酸+2 mL氢氟酸+1 mL硝酸消解γ-钛铝铌合金,以基体匹配法建立系列校准曲线,选择铝394.401 nm、铌269.706 nm、钨207.912 nm、硼249.772 nm为分析线,采用左右两点离峰背景扣除方法校正背景光谱的重叠干扰和漂移干扰,各元素质量分数的线性范围分别为:铝30%~40%,铌10%~25%,钨0.015%~1.0%,硼0.003%~0.10%。测定结果的相对标准偏差均不大于4%(n=10),加标回收率为93%~108%。该方法能够满足Ti-(30~40)Al-(15~20)Nb-x W-y B中主量铝、铌和微量钨、硼的同时、快速检测需求。A rapid method for simultaneous determination of aluminum,niobium,tungsten and boron inγ-titaniumaluminum-niobium alloy was developed by the inductively coupled plasma atomic emission spectrometry method.Theγ-titanium-aluminum-niobium alloy sample was dissolved with 10 mL hydrochloric acid,2 mL hydrofluoric acid and 1 mL nitric acid.Al 394.401 nm,Nb 269.706 nm,W 207.912 nm and B 249.772 nm were selected as the analysis lines and twopoint off-peak method were used to correct the overlapping and drift interference of background spectrum.The linear determination scopes of mass fraction were 30%to 40%for aluminum,10%to 25%for niobium,0.015%to 1.0%for tungsten and 0.003%to 0.10%for boron,respectively.The relative standard deviations of results were less than 4%(n=10),and the recoveries were between 93%and 108%.The method could meet the requirements of routine and rapid determination of aluminum,niobium,tungsten and boron in Ti-(30-40)Al-(15-20)Nb-xW-yB Alloy.

关 键 词：电感耦合等离子体原子发射光谱法 γ-钛铝铌合金 铝 铌 钨 硼 氢氟酸 

分 类 号：O657.3[理学—分析化学]