Determination of Trace Sodium Element in N36 Zirconium Alloy by Inductively Coupled Plasma Optical Emission Spectrometry with Uniform Experimental Design
Received:December 08, 2018  Revised:December 13, 2018
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DOI:doi:10.3969/j.issn.2095-1035.2019.02.014
KeyWord:N36 zirconium alloy; trace; sodium; inductively coupled plasma optical emission spectrometry; uniform experimental design
                 
AuthorInstitution
Hui Boning 西部新锆核材料科技有限公司
LI Weimin 西部新锆核材料科技有限公司
ZHANG Haixia 太原理工大学 新材料工程技术研究中心
HUANG Zengxin 西部新锆核材料科技有限公司
WEN Huimin 西部新锆核材料科技有限公司
ZHOU Jun 西部新锆核材料科技有限公司
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Abstract:
      This paper describes a method for the determination of trace sodium in N36 zirconium alloy by inductively coupled plasma optical emission spectrometry. The influences of sample dissolution ways, plasma view, spectra lines, matrix interference, etc. are discussed. 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. In this study, interferences were eliminated by using the matrix matching method. The precision and accuracy are verified by using N36 zirconium alloy samples under the optimum instrument parameters obtained by uniform experimental design. The relative standard deviation (RSD, n=11) was less than 5%, and recoveries tested 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.
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