摘要
基于在硫酸介质中钒(Ⅴ)催化溴酸钾氧化铍试剂Ⅲ的反应建立了测定痕量钒(Ⅴ)的新方法,研究了试剂浓度条件,讨论了反应机理,方法线性范围是0～0 50ng mL,检出限为7 0×10-12g mL,方法已用于矿泉水及蔬菜中钒的测定。
Kinetic determination of vanadium(Ⅴ) based on its activating effect on the oxidation of berylliumⅢ by KBrO3 in H2SO4 was studied. The effect of reagent concentration and reaction mechanism were discussed. The linear range of determination was 0～050 ng/mL for vanadium(Ⅴ) with the detection limit of 7.0×10-12 g/mL. The method was used to determine trace vanadium in mineral water and celery samples.
出处
《分析试验室》
CAS
CSCD
北大核心
2003年第6期44-46,共3页
Chinese Journal of Analysis Laboratory
