一类新的不对称变色酸双偶氮氟膦型试剂与铋显色反应的研究  

Study on the chromogenic reaction of bismuth with a new type of fluorophosphonazo reagents of asymmetric chromotropic acid

作　　者：彭志华[1] 高美荣[1] 沈丽莉[1] 王冰[1] 吴斌才[1] 

机构地区：[1]华东师范大学化学系,上海200062

出　　处：《分析试验室》2004年第5期84-87,共4页Chinese Journal of Analysis Laboratory

基　　金：上海市科技发展基金资助项目(011209015)

摘　　要：对5种新的偶氮氟膦型试剂与铋(Ⅲ)的显色反应的条件进行了研究,考察了反应酸度、配合物的最大吸收峰的位置、配合物的稳定性、反应灵敏度及选择性等,结果表明:5种偶氮氟膦型试剂与铋配合物的最大吸收波长位于622～664nm之间,摩尔吸光系数在(0.72～0.98)×105L·mol-1·cm-1范围内。方法已用于实际样品胃必治中铋的测定。The chromogenic reaction of Bi(Ⅲ) with five new fluorophosphonazo reagents was studied. The acidity of the reactions, absorption maximum of the complexs, stability of the complexs, reaction sensitivity and selectivity were investigated. This method was used to determine Bi(Ⅲ) in tablets with satisfactory results.

关 键 词：偶氮氟膦型试剂 铋 显色反应 

分 类 号：O657.3[理学—分析化学]