【摘要】 本文报道了测镉新试剂2.6-二碘—4—氨磺酰基苯基重氮氨基偶氮苯的合成、纯化以及某些物理性质。研究了该试剂在表面活性剂TritonX—100存在下与镉的显色反应,并且与以前作者合成的同类试剂DBSDAA、DCSDAA、SDAA进行了比较,讨论了试剂结构与该类试剂分析性能的关系。更多还原

【Abstract】 A new triazene reagent for spectrophotometric determination of cadmium 2. 6 - diiodo - 4 - sulfamoylbenzenediazoaminoazobenzene (DISDAA ) was synthesized and purified in this paper. In the presence of nonionic surfactant TritonX -100 the color reaction of the reagent reacted with cadmium was studied. The results of color reaction was compared with homologous reagents 2. 6-dichloro - 4 - sulfamoylben-zenediazoaminoazobenzene ( DCSDAA ). 2. 6 - dibromo - 4 - sulf amoylbenzenedia-zoaminoazobenzene ( DBSDAA) and p - sulfamoylbenzenediazoaminoazobenzene (SDAA)which had been synthesized by author in the recent year. The relationship between the reagent structure and their analytical properties was dissueed.更多还原