石墨炉原子吸收法可应用于各种材料中钡的测定。由于岩石矿物的基体组成比较复杂,主要成分对测定钡的干扰严重,往往使直接测定遇到困难,Cioni等用离子交换分离干扰元素后进行测定。为探讨直接测定的方法,本文应用钽涂层石墨管对石墨炉原子吸收测定钡的最佳条件,岩石中主要成分对钡的干扰进行了试验。选择镧和铝作为释 Graphite furnace atomic absorption method can be applied to the determination of barium in various materials. Due to the complexity of the matrix composition of rock minerals, the main components interfere with the determination of barium severely, often make direct determination difficult, Cioni and other ion exchange separation element after the determination. In order to explore the method of direct determination, this paper uses graphite tantalum coated graphite tube graphite furnace atomic absorption determination of barium optimum conditions, the main components of rock interference of barium were tested. Choose lanthanum and aluminum as the release