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在盐酸介质中 ,Sb( )用碘化钾和抗坏血酸还原成 Sb( )后 ,再与强还原剂硼氢化钾反应生成氢化锑。该氢化物用载气氮送入原子化系统原子化以测定锑。锑最大吸收波长为 2 1 7.6nm,在 0 .5～ 55ng·m L-1范围 ,锑浓度与吸光度呈线性关系 ,检出限为 2 .1× 1 0 -9mol· L-1。方法无需预处理直接用于锌电解液中微量和痕量锑的测定
In hydrochloric acid medium, Sb () with potassium iodide and ascorbic acid reduced to Sb (), and then with a strong reductant potassium borohydride reaction of antimony hydride. This hydride is atomized with a carrier nitrogen to the atomization system for the determination of antimony. The maximum absorption wavelength of antimony is 2 1 7.6 nm. The concentration of antimony has a linear relationship with the absorbance in the range of 0.5 ~ 55 ng · m L-1 with a detection limit of 2.1 × 10 -9 mol · L -1. The method was used directly for the determination of traces of trace antimony in zinc electrolytes without preconditioning