离子选择性电极近十多年来获得迅速发展,已成为分析化学中比较活跃的领域之一,特别是LaF_3单晶膜电极已得到广泛的研究及应用,特别是用氟离子选择电极作指示电极间接测定Si(Ⅳ)、A1(Ⅲ)和稀土。张国雄等详细研究了NaF滴定钢铁及其合金中铝的各种条件。但对9,4铜中铝的测定尚未见报导,我们试验了用氟离子电极 Ion selective electrode has developed rapidly in recent ten years and has become one of the more active analytical chemistry fields. In particular, the single-crystal LaF_3 electrode has been widely studied and applied, especially the fluoride ion-selective electrode Indirect determination of Si (Ⅳ), A1 (Ⅲ) and rare earths. Zhang Guoxiong et al. Studied in detail the various conditions for NaF titration of steel and its alloys in aluminum. However, the determination of 9,4 copper in aluminum has not been reported, we tested the fluoride ion electrode