Mao Z, Chen S, Shi L, Zhou G
Structure Research Laboratory, University of Science and Technology of China, 230026 Hefei.
Guang Pu Xue Yu Guang Pu Fen Xi. 1998 Aug;18(4):503-6.
The determination of Y, Ce, Ba and Cu in a series of Y(1-x)Ce(x)Ba(2)Cu(3)O(y) samples has been performed using X-ray fluorescence fundamental parameter method. The composition is given in atomic percentage. The results agree well with those obtained by ICP. It is shown that this method is appropriate for the determination of compositions of the high temperature superconductors. In addition, the influence of oxygen on analytical elements has been discussed in this paper. The fraction of the matrix total mass absorption that is associated with oxygen for each analytical line can not be larger than 3.44%. The determined composition of the samples show different from their nominal composition,which may affect the properties of high temperature superconductor.
采用X射线荧光基本参数法对一系列Y(1-x)Ce(x)Ba(2)Cu(3)O(y)样品中的Y、Ce、Ba和Cu进行了测定。组成以原子百分比给出。结果与电感耦合等离子体质谱法（ICP）所得结果吻合良好。结果表明，该方法适用于高温超导材料组成的测定。此外，本文还讨论了氧对分析元素的影响。每条分析线中与氧相关的基体总质量吸收分数不能大于3.44%。样品的测定组成与其标称组成不同，这可能会影响高温超导体的性能。
