噻唑偶氮类试剂的合成及对其分析性能的研究

Synthesis of thiazolyl-azo-derivatives and study of their properties

介绍了四种4,5-二甲基噻唑(?)氮类显色剂的合成及其质子化行为与金属离子的生色性能,并利用4-(4,5-二甲基噻唑(?)氮)-1,3-二氨基苯(简称 DMTADAB)拟定了钴、钯连续测定的方法。

Four dimethylthiazolylazo compounds,5-(4,5-dimethylthiazolylazo)-2,4-diamino-toluene(DMTADAT),4-(4,5-dimethylthiazo-lylazo)-1,3-diamino-benzeae(DMTADAB),2-(4,5-dimethylthiazolylazo)-5-dimethylamino-amanobonzene(DMTAA),and 2-(4,5-dimethyl-thiazolylazo)-5 -dimethylamino-phenol(DMTAM)have been synthesized.Their protonizationbehaviors and chromsgenic properties of theirreaction with metallic ions have been studiedsystematically.A new method for the simult-aneous determination of Co and Pd has been-developed byusing 4-(4,5-dimethylthiazolylazo)-1,3-diamino-benzeue(DMTADAB).