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痕量锂在人体内已成为不可缺少的元素,对疾病的控制或临床上的诊断以及对环境、医学及生物的研究都有明显的意义。由于一般分析方法灵敏度不高,对锂的检测比较困难。Ottaway等采用石墨炉原子发射法以标准石墨管测定锂和其它某些元素,检出限比火焰发射法和石墨炉原子吸收法有明显的改善,并应用于纯铜中痕量锂的测定。Matousek等研究了锂的石墨炉原子发射方法,在入口狭缝处使用档光技术降低背景发射,提高了
Trace amounts of lithium have become indispensable elements in the human body and have significant implications for the control or clinical diagnosis of diseases and for the study of the environment, medicine and biology. Due to the low sensitivity of the general analytical method, the detection of lithium is more difficult. Ottaway and other graphite furnace atomic emission method with a standard graphite tube for the determination of lithium and some other elements, the detection limit than flame emission and graphite furnace atomic absorption method has significantly improved and applied to the determination of trace copper in pure copper. Matousek et al. Studied graphite furnace atomic emission of lithium using a technique of reducing the background emission at the entrance slit and increasing