钌(Ⅲ)-偶氮胂DBM-KIO_4催化分光光度法测定痕量钌  

Cotalytic Spectrophotometric Determination of Ru(Ⅲ) by Decolorizing Reaction with Ru(Ⅲ)-KIO_4-Arsenazo-DBM

作　　者：庄善学[1] 王耀泰[1] 刘锡林[1] 

机构地区：[1]甘肃联合大学理工学院,甘肃兰州730000

出　　处：《甘肃联合大学学报（自然科学版）》2006年第2期53-54,共2页Journal of Gansu Lianhe University :Natural Sciences

摘　　要：在H2SO4介质中,痕量钌的存在对KIO4-偶氮胂DBM的褪色反应有明显的催化作用,本文研究了该褪色反应的最佳条件及痕量钌的测定方法,检出限为0.001μg.mL-1,钌含量在0.001-0.015μg.mL-1范围内符合比尔定律.A spectrophotometric method has been developed for the determination of Ruthenium,based on their catalytic effect on potassium periodate oxidation of arsenazo-DBM in H2SO4 medium. The optimum conditions of the reaction have been determined. The determination limits was 0. 001μg · mL^-1 ,and the linear range are 0. 001--0. 015μg · mL^-1.

关 键 词：钉 偶氮胂DBM 高碘酸钾 催化分光光度分析 

分 类 号：O657.32[理学—分析化学]