摘要
向钛的标准系列溶液中加入 2 0 0 μg/m L的 Al Cl3 溶液 ,在富氧空气 -乙炔高温火焰中有效地提高了钛化合物的原子化效率 ,还能较好地克服共存元素的化学干扰。在优化的测定条件下 ,直接测定了地质样品中的钛。方法的检出限 CL(K=3)为 0 .2 5 μg/m L,对 GBW0 730 2管理样品测定 6次 ,RSD为 3.81%。
When (200μg/mL) aluminium chloride was added in standard serious solution of titanium,the atomization efficiency of titanium is increased in O 2-air-C 2H 2 Flame,and the chemical interference from the coexisting elements can be minimized.Trace titanium in Geological samples was determined directly by O 2-air-C 2H 2 FAAS in optimum condition.The detection limit (K=3) is 0.25μg/mL for Ti.The method has been applied to the determination of trace titanium in geological sample GBW 07302.The result is in agreement with certified value with precision of 3.81%(RSD n=6).
出处
《光谱实验室》
CAS
CSCD
2003年第6期856-858,共3页
Chinese Journal of Spectroscopy Laboratory
基金
湖北省教育厅重大科技项目 (No.2 0 0 1Z0 80 0 2 )
