测镉新试剂2－羧基－4－溴苯重氮氨基偶氮苯的合成及该类试剂结构与分析性能关系的研究  

Synthesis of a new reagent 2-carboxyl-4-bromobenzendeiazoaminoazobenzene for determination of cadmium and study on the relationship between structure of its analogues and analytical properties

作　　者：王磊[1] 

机构地区：[1]淮北煤炭师范学院化学系

出　　处：《化学试剂》1995年第4期214-216,196,共4页Chemical Reagents

摘　　要：合成了新的测镉试剂２－羧基－４－溴苯重氮氨基偶氯苯并研究了在ＴｒｉｔｏｎＸ－１００存在下与镉的显色反应。把该显色反应结果与同类试剂邻羧基苯重氮氨基偶氮苯、间羧基苯重氮氨基偶氮苯、对羧基苯重氮氨基偶氮苯、２，４－二溴－６－羧基苯重氮氨基偶氮苯和２，６－二溴－４－羧基苯重氮氨基偶氮苯与镉的显色反应进行了比较，从而讨论了试剂结构与分析性能之间的关系。Anew color reagent for the spectrophotometric determination of cadmium, 2-carboxyl-4-bromobenzene diazoaminoazobenzene, has been synthesized and the color reaction between the reagent and cadmium in the presence of Trito X-100 has been studied.By comparing the above color reaction with the color reaction of analogous reagents o-carboxylbenzenediazoaminoazobenzene,m-carboxylbenzenediazoaminoazobenzene, p-carbolylbenzenediazoaminoazobenzene, 2,4-dibromo-6-carboxylbenzenediazoaminoazobenzene and 2, 6-dibromo-4-carboxylbenzenediazoaminoazobenzene with cadmium respectively, the relationshipbetween the structure of reagent and analytical properties has been discussed.

关 键 词：羧基 溴苯 重氮 氨基 偶氮苯 镉 光度法 

分 类 号：O614.242[理学—无机化学] O657.3[理学—化学]