摘要
基于碘在高碘酸钾氧化亮绿SF增色反应中的催化活性 ,建立了高灵敏度、高选择性的催化动力学光度法测定痕量碘的方法 ,测定范围为 0 .5～ 10 μg·ml- 1,方法检出限为 0 .2 6μg·ml- 1,用于天然水的碘化物测定 。
It is found that the oxidation of bright green SF by periodate is catalyzed by the presence of trace amounts of iodide, resulting an increase of color intensity. A linear relationship between the increase in color intensity and the concentration of iodide holds over the range of 0.5～10μg of I - per ml of solution. The limit of detection is found to be 0.26μg·ml -1 . Based on the above experimental results, a sensitive and selective method for the determination of trace amounts of iodine is proposed, and it is satisfactorily applied to the analysis of natural water.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2001年第11期495-496,498,共3页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
