对氨基苯基荧光酮分光光度法测定铬Ⅵ  

Spectrophotometric determination of chromium Ⅵ with paminophenylfluorone

作　　者：马卫兴[1] 许兴友[1] 营爱玲[1] 

机构地区：[1]淮海工学院化学工程系,江苏连云港222005

出　　处：《冶金分析》2002年第5期41-42,共2页Metallurgical Analysis

摘　　要：在盐酸-磷酸介质中,黄色的对氨基苯基荧光酮被铬 氧化为橙红色的产物,其最大吸收波长为497nm。借此建立了对氨基苯基荧光酮氧化显色测定铬 的新方法,铬 量在0～40μg/25mL内服从比尔定律。方法用于钢样中铬的测定,结果满意。In the medium of HClH3PO4 ,the yellow paminophenylfluorone was oxidized by chromium*&to form an orangered product with the λmax at 497nm,and Beer's law was obeyed over the range of 0-40μg/25mL for chromium*&The proposed method has been applied to the determination of chromium in steel samples with satisfactory results

关 键 词：对氨基苯基荧光酮 分光光度法 测定 铬 

分 类 号：TG115.3[金属学及工艺—物理冶金]