摘要
建立了电感耦合等离子体发射光谱(ICP-OES)法测定N36锆合金中微量钠元素含量的分析方法。对样品溶解方法、观测方式、谱线选择、基体效应干扰等对实验的影响进行了讨论。采用均匀试验设计法确定了最佳的等离子体发生器功率、等离子气流量、辅助气流量、雾化气流量。实验结果表明,锆基体对测定结果有较大影响。采用基体匹配消除干扰,在均匀实验设计优化的仪器测定参数下,实验证明,方法的相对标准偏差(RSD,n=11)<5%,加标回收率在95%～105%。所建立的方法快捷、简便、准确,满足核用N36锆合金中微量钠元素的分析要求。
The method for determination of trace sodium in N36 zirconium alloy by inductively coupled plasma optical emission spectrometry is established. The influence factors are discussed, such as sample dissolution ways, plasma view, spectra lines, matrix interference, etc. The uniform experiment design is used to determine the optimum RF power, plasma gas flow, auxiliary gas flow and nebulizer gas flow. The results indicate that the zirconium matrix has interferences on the measurement. Under the optimum instrument parameters obtained by uniform experimental design, interferences were eliminated by using the matrix matching method . The relative standard deviation (RSD, n =11) was less than 5%, and recoveries were in the range of 95%-105%. Based on the results obtained in the present work, it is concluded that the method is fast, simple and accurate, and can meet the analytical requirements for trace sodium in the N36 zirconium alloy for nuclear use.
作者
惠泊宁
李维敏
章海霞
黄增鑫
文惠民
周军
HUI Boning;LI Weimin;ZHANG Haixia;HUANG Zengxin;WEN Huimin;ZHOU Jun(Western Energy Material Technologies Co., Ltd., Xi’an,Shaanxi 710299, China;Research Center of Advanced Materials Science and Technology of Taiyuan University of Technology, Taiyuan,Shanxi 030024, China)
出处
《中国无机分析化学》
CAS
2019年第2期61-64,共4页
Chinese Journal of Inorganic Analytical Chemistry
基金
国家自然科学基金项目(51701137)
关键词
N36锆合金
微量
钠
电感耦合等离子体发射光谱法
均匀试验设计
N36 zirconium alloy
trace
sodium
inductively coupled plasma optical emission spectrometry
uniform experimental design
