Determination of 26 impurities in zirconium diboride by inductively coupled plasma atomic emission spectrometry
ZHAO Yonhong, FENG Haining, YANG Yongming
China North Nuclear Fuel Co., LTD., Baotou 014035, China
Abstract：The method for determination of 26 impurity elements in zirconium diboride was established by inductively coupled plasma emission spectrometry after microwave digestion. The optimum analysis line of each element was determined according the influence of chemical composition of zirconium diboride on impurity. The optimum zirconium matrix concentration was determined by the effect of different concentrations of zirconium matrix on the determining element. Boron in sample was separated by extraction method to eliminate the interference of boron to impurity detection. The matrix matching method and multispectral quasi sum technique were used to eliminate the interference of zirconium matrix. At the selected working condition of the instrument, the mass concentration of the elements to be measured and the signal strength had good linear relationship, the linear correlation coefficient was all more than 0.999. The recoveries of the samples were 94% -101%, and the detection limits of 26 impurity elements were not more than 6%(n=11). The method can be used for the determination of 26 impurity elements in zirconium diboride with simple operations and accurate results.
Keywords：inductively coupled plasma atomic emission spectrometry; impurity element; zirconium diboride
ZHAO Y H，FENG H N，YANG Y M. Determination of 26 impurities in zirconium diboride by inductively coupled plasma atomic emission spectrometry[J]. Chemical analysis and meterage，2020，29(3)：55-59.