含 Ti 的钽酸钽晶体 Li_(1+x)Ta_(1-x)Ti_xO_3(X=0.04-0.14)是一种较新的非线性光学材料。分析其中的 Li、Ti、Ta 采用化学分析方法较复杂,费时;XRF 法既快速又准确,然而标准样品的制备不易且不能同时测定 Li;AAS法测定 Li 时 Ta 有干扰需分离。文献报道了用 ICP 法分析铌钽矿,但对于含 Ta 量较高的晶体分析尚未见报道。本文拟定了同时测定三元素的分析方法,用 Li t (1 + x) Ta 1-x Ti x O 3 (x = 0.04-0.14) is a newer nonlinear optical material. The analysis of Li, Ti, Ta is more complicated and time-consuming by chemical analysis method. The XRF method is rapid and accurate, however, the preparation of standard sample is not easy and can not simultaneously determine Li; Reported the use of ICP analysis of niobium tantalum ore, but for higher Ta content of the crystal analysis has not been reported. This article has developed a simultaneous determination of three elements of the analytical method