Analytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai, 400085, India.
Technical Physics Division, Bhabha Atomic Research Centre, Mumbai, 400085, India.
Anal Chim Acta. 2022 Jan 25;1191:339295. doi: 10.1016/j.aca.2021.339295. Epub 2021 Nov 18.
A methodology has been developed for the complete compositional characterization of lithium titanate (LTO) using neutron activation, which is quite challenging and no literature report is available so far. The concept of thermal neutron induced in-situ chain reactions Li(n,α)H and O(H,n)F has been used for the determination of Li and O through the measurement of F activity. The method is capable of analyzing Li and O in percentage level as reported in the present analysis of two types of lithium titanate samples. Spectroscopic interference of the elements which can directly or indirectly affect the outcome, were evaluated meticulously. Determination of Ti was carried out using fast neutron activation through the product isotopes like Sc, Sc, generated via (n,p) nuclear reactions. Fast neutron activation methodology seems to be advantageous for Ti determination over thermal neutron activation, as it offers self validation through different isotopes and multiple gamma lines.
已经开发出一种使用中子激活法对钛酸锂 (LTO) 进行完整成分特征描述的方法，这是一项极具挑战性的工作，迄今为止尚无文献报道。利用热中子诱导的原位链式反应 Li(n,α)H 和 O(H,n)F 的概念，通过测量 F 活性来确定 Li 和 O。该方法能够分析出报告中两种类型的钛酸锂样品中以百分比计的 Li 和 O。仔细评估了可能直接或间接影响结果的元素的光谱干扰。通过 (n,p) 核反应生成的产物同位素 Sc、Sc 等，使用快中子激活来测定 Ti。与热中子激活相比，快中子激活方法似乎更有利于 Ti 的测定，因为它通过不同的同位素和多条伽马射线提供了自我验证。
