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铱(IV)-溴酸钾-三氯偶氮氯膦褪色光度法测定微量铱
Discoloring Spectrophotomeric Deterination of Iridium(IV) by Iridium(IV)-Potassium Bromate-2-(4-Chloro-2-Phosphonopheny) azo-7-(2,4,6-trichloro-Phenyl)azo-1,8-dinyaroxy-3,6-uaphthalene Dieulfonie Acid System
【摘要】 报道了以铱(IV)催化溴酸钾氧化三氯偶氮氯膦的褪色反应,建立了一种在水相中直接测定微量铱的催化光度分析法.铱含量在10.0～100.0μg·L-1范围内符合比耳定律,检出限10.0μg·L-1.用于合成样中铱的测定,回收率在98.0%～101.7%之间.
【Abstract】 A new discoloring spectrophotometric method for the determination of Iridium(IV) has been established,based on its catalytic effect on the oxidation of 2-(4-chloro-2-phosphonophenyl)azo-7-(2,4,6-trichloropheuyl) azo-1,8-dinyaroxy-3,6-naphthalene dieulfonie acid in acid medium.Beer’s law is obeyed in the concentration range of 10.0～100.0μg·L-1.The detection limit is 10.0μg·L-1.
- 【文献出处】 甘肃教育学院学报(自然科学版) ,Journal of Gansu Education College(Natural Science Edition) , 编辑部邮箱 ,2003年02期
- 【分类号】O657.3
- 【被引频次】2
- 【下载频次】24