拟定了氢化物原子吸收法测定镍基合金和钢铁中微量锡的方法。Cl~(6+)(1毫克),Al~(3+)(0.5毫克),Co~(2+)(1.2毫克),Cu~(2+)(1毫克),As~(3+)(5微克),Sb~(3+)(10微克)均可产生严重干扰(抑制信号约70—80%),因此,对于镍基合金要用氢氧化铍共沉淀分离法除去干扰元素,而钢铁试样不需分离就可直接用氢化物原子吸收测定。方法可测定低至0.0001%的锡。 A method for the determination of trace tin in nickel - base alloy and steel by hydride generation atomic absorption spectrometry was developed. (6 +) (1 mg), Al 3+ (0.5 mg), Co 2 + (1.2 mg), Cu 2+ (1 mg), As 3+ (5 micrograms) and Sb (3 +) (10 micrograms) all produce serious interference (about 70-80% inhibition signal). Therefore, the interference elements should be removed by the beryllium hydroxide coprecipitation method Steel samples without separation can be directly measured by hydride atomic absorption. The method can measure tin as low as 0.0001%.