石墨炉原子吸收法测定饮用水中痕量锗

探讨了以硝酸钯为基体改进剂,用石墨炉原子吸收法直接测定饮用水中痕量锗的最佳仪器测量条件、方法原理、基体改进剂的用量、准确度、精密度、曲线线性系数、测定下限、线性范围等。结果表明该方法灵敏、准确、稳定性好,加标回收率为96%～105%。

Graphic oven atomic adsorption spectrophotometry for trace Ge examination in drinking water

Graphic oven atomic adsorption (GOAA) spectrophotometry might be the best way for trace germanium examination in drinking water. The palladium nitrate was applied as substrate improvement agent in this experiment and in this paper the mechanism and best operating conditions of GOAA such as the dose of substrate improver, accuracy, precision, the curve linear coefficient, the examination low limit and the linear range of the method are presented in detail. The results showed that the work of GOAA is sensitive, accurate and very stable, the labeled recovery yields are around 96% to 105%.